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  • 1
    facet.materialart.
    Unknown
    Physika-Verlag, Würzburg
    In:  Herausgeberexemplar (Archiv der DGG in Leipzig) | 8 Z NAT 2148
    Publication Date: 2021-03-29
    Description: Inhaltsverzeichnis : Übersichtsartikel: GEYH, M. A.: Der Radiokohlenstoff und seine Rolle in der geowissenschaftlichen Forschung . . . 909 ; FUCHS, K., D. MAYER-ROSA, and F. LIEBAU: Lateral Inhomogenities of the Earth‘s Mantle and Their Petrological Interpretation . . . 937 ; FIELITZ, K.: Elastische Wellengeschwindigkeiten in verschiedenen Gesteinen unter hohem Druck und bei Temperaturen bis 750 °C . . . 943 ; PARTSCH, W.: Ein gravimetrisches Modell der Erdkruste im Gebiet der Ostalpen . . . 957 ; HAENEL, R.: Heat Flow Measurements and a First Flow Map of Germany . . . 975 ; FLACH, D., O. ROSENBACH, and H. WILHELM: Tidal Analyses of Simulation Records Taken ba Two Askania Borehole Tiltmeters . . . 993 ; FLACH, D., G. JENTZSCH, O. ROSENBACH, and H. WILHELM: Ball-Calibration of the Askania Borehole Tiltmeter (Earth Tide Pendulum) . . . 1005 ; RICHTER, I.: Eine Gradientschicht im oberen Teil der Erdkruste als Wellenleiter von Raumwellen . . . 1013 ; BJÖRNSSON, A., O. HILDEBRAND, and H. VOELKER: First Observational Results of Geomagnetic pi2 and pc5 Pulsations on a North-South Profile through Europe . . . 1031 ; KOTADIA, K. M., and B. M. PATEL: Ionosperic Absorption of Radio Waves on 1.725 MHz and the Winter Anomaly during Sunspot Minimum . . . 1043 ; MÜHLEISEN, R., H.-J. FISCHER and H. HOFMANN: Horizontal Electric Fields in Ionosphere Derived from Air Electric Measurements . . . 1055 ;
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Physische Geografie ; Alpen ; Alps ; Askania Borehole Tiltmeter ; C-14 ; Earth’s Mantle ; Erdmantel ; Geomagnetismus ; Geothermie ; Geothermics ; Ionosphäre ; Ionosphere ; Luftelektrizität ; Tiden ; waves ; Wellen ; FID-GEO-DE-7
    Language: German , English
    Type: anthology_digi
    Location Call Number Expected Availability
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  • 2
    facet.materialart.
    Unknown
    Springer, Berlin
    In:  SUB Göttingen | 8 Z NAT 2148
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 32 Artikel zu Themengebieten der Geophysik, veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1983.
    Description: Inhaltsverzeichnis: Journal of Geophysics 59 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0011.pdf"〉The detailed velocity structure of the Urach geothermal anomaly〈/a〉〈br〉 (Walther, C., Trappe, H., Meissner, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0012.pdf"〉The effect of 〈i〉SKS〈/i〉 scattering on models of the shear velocity-structure of the D" region〈/a〉〈br〉 (Lay, T., Young, C.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0013.pdf"〉Spheroidal and torsional global response functions〈/a〉〈br〉 (Wilhelm, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0014.pdf"〉Magnetometer array studies on southeastern Finland on the Baltic shield〈/a〉〈br〉 (Pajunpää, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0016.pdf"〉Magnetovariational and magnetotelluric studies of the Oulu anomaly on the Baltic Shield in Finland〈/a〉〈br〉 (Korja, T., Zhang, P., Pajunpää, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0018.pdf"〉Glacio-isostatic adjustment in Fennoscandia revisited〈/a〉〈br〉 (Wolf, D.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0019.pdf"〉Modelling active audio-magnetotelluric data〈/a〉〈br〉 (Fischer, G., Schnegg, P.-A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0020.pdf"〉A comparison of upper mantle subcontinental electrical conductivity for North America, Europe, and Asia〈/a〉〈br〉 (Campbell, W. H., Schiffmacher, E. R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0021.pdf"〉Paleomagnetism of the tertiary intrusives from Chalkidiki (northern Greece)〈/a〉〈br〉 (Kondopoulou, D., Westphal, M.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0022.pdf"〉Absolute intensity of daytime whistlers at low and middle latitudes and its latitudinal variation〈/a〉〈br〉 (Hayakawa, M., Tanaka, Y., Ohta, K., Okada, T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0023.pdf"〉Electric fields and currents at the Harang discontinuity: a case study〈/a〉〈br〉 (Kunkel, T., Baumjohann, W., Untiedt, J., Greenwald, R. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0024.pdf"〉〈i〉Erratum.〈/i〉 In-situ permeability from non-dilatational soil deformation caused by groundwater pumping – a case study〈/a〉〈br〉 (Kümpel, H.-J., Lohr, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0025.pdf"〉Book reviews〈/a〉〈br〉 (Jentzsch, G., Jacoby, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0026.pdf"〉A conceptual model of core dynamics and the earth's magnetic field〈/a〉〈br〉 (Officer, C. B.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0027.pdf"〉Paleomagnetism of Miocene volcanism from South Syria〈/a〉〈br〉 (Roperch, P., Bonhommet, N.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0028.pdf"〉Periadriatic lineament in the Alps studied by magnetotellurics〈/a〉〈br〉 (Ádám, A., Duma, G., Gutdeutsch, R., Verő, J., Wallner, Á.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0031.pdf"〉Comparison of fault-plane solutions and moment tensors〈/a〉〈br〉 (Hinzen, K.-G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0032.pdf"〉A teleseismic study of the Upper Rhinegraben area: array mislocation diagram and 3-D velocity inversion〈/a〉〈br〉 (Granet, M.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0033.pdf"〉Interactive high-resolution polarization analysis of broad-band seismograms〈/a〉〈br〉 (Plešinger, A., Hellweg, M., Seidl, D.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0035.pdf"〉The relationship between the polarization of whistlers and their dispersion〈/a〉〈br〉 (Shimakura, S., Okada, T., Hayakawa, M., Tanaka, Y.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0036.pdf"〉A simple statistical model on the degree of interconnection on partially molten rocks〈/a〉〈br〉 (Schmeling, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0037.pdf"〉Book reviews〈/a〉〈br〉 (Hansen, C. J., Jentzsch, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0038.pdf"〉Complete seismogram synthesis for transversely isotropic media〈/a〉〈br〉 (Mandal, B., Mitchell, B. J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0039.pdf"〉The influence of a dilatant region in the Earth's crust on the Earth tide tilt and strain〈/a〉〈br〉 (Kirsch, R., Zschau, J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0040.pdf"〉The influence at atmospheric loading on VLBI-experiments〈/a〉〈br〉 (Rabbel, W., Schuh, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0041.pdf"〉Discrete frequency inequalities for magnetotelluric impedances of one-dimensional conductors〈/a〉〈br〉 (Weidelt, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0042.pdf"〉Thermally stimulated currents in rocks〈/a〉〈br〉 (Dologlou-Revelioti, E., Varotsos, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0043.pdf"〉Magnetostratigraphy of Neogene equatorial Pacific pelagic sediments〈/a〉〈br〉 (Weinreich, N., Theyer, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0045.pdf"〉Deconvolution as a method for the separation of Pi2 pulsations from background field variations〈/a〉〈br〉 (Behrens, J., Glaßmeier, K.-H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0046.pdf"〉〈i〉Laudatio〈/i〉. Presentation of the Emil Wiechert Medal to Don L. Anderson, Pasadena〈/a〉〈br〉 (Soffel, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0047.pdf"〉〈i〉Correction〈/i〉. A comparison of upper mantle subcontinental electrical conductivity for North America, Europe and Asia〈/a〉〈br〉 (Campbell, W. H., Schiffmacher, E. R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0059/LOG_0048.pdf"〉Book reviews〈/a〉〈br〉 (Kertz, W., Schwentek, H., Jacoby, W. R.)〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Alps ; Broad-band seismology ; Deconvolution ; Deep Sea Drilling Project ; Deformation of earth’s surface ; Dilatancy ; Dynamo theory ; Earth currents ; Earth tides ; Earth’s core ; Earth’s crust ; Earth’s Mantle ; Electrical Conductivity of the Earth ; Electromagnetic Induction ; Fault plane solutions ; Free oscillations of earth ; Geomagnetic pulsations ; Geothermics ; Germany ; Global positioning ; Gräfenberg seismic array ; Greece ; Harang discontinuity ; Inverse problems ; lonospheric electric field ; lsostasy ; Magnetic field of earth ; Magnetometer array studies ; Magnetosphere ; Magnetostratigraphy ; Magnetotellurics ; Pacific ; Paleomagnetism ; Partial melts ; Polar ionosphere ; Polar magnetic substorms ; Rhinegraben ; Rock Physics ; Scandinavia ; Seismics ; Seismic Moment tensor ; Seismic wave propagation ; Seismology ; Synthetic seismograms ; Syria ; Very Long Baseline Interferometry ; Viscosity of earth’s mantle ; Whistlers ; FID-GEO-DE-7
    Language: English
    Type: anthology_digi
    Location Call Number Expected Availability
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  • 3
    facet.materialart.
    Unknown
    Springer, Berlin
    In:  SUB Göttingen | 8 Z NAT 2148:40
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 134 Artikel zu Themengebieten der Seismologie, Erdmagnetismus und Gesteinsphysik veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1974.
    Description: Inhaltsverzeichnis: Journal of Geophysics 40 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0010.pdf"〉Seegravimetrie〈/a〉〈br〉 (Fleischer, U.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0014.pdf"〉Statistical analysis of the pitch angle distribution of magnetospheric solar protons during geomagnetic activity〈/a〉〈br〉 (Scholer, M., Morfill, G., Hovestadt, D.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0016.pdf"〉Viscosity-depth-structure of different tectonic units and possible consequences for the upper part of converging plates〈/a〉〈br〉 (Meissner, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0017.pdf"〉Die Magnetisierung von Bohrkernen aus einem Serpentinit-Vorkommen bei Erbendorf (Oberpfalz) (Schult, A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0018.pdf"〉Estimates of in situ thermal diffusivity of the Ore-Bearing Rocks in some drillholes in the Skellefte Field (N. Sweden) using the annual temperature wave〈/a〉〈br〉 (Parasnis, D. S.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0019.pdf"〉Geophysical exploration for groundwater in the Lusaka District, Republic of Zambia〈/a〉〈br〉 (Töpfer, K.D., Legg, C. A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0021.pdf"〉Neuere Versuche zum Dipol-Induktionsverfahren〈/a〉〈br〉 (Leppin, M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0022.pdf"〉A field evaluation of Caner's broad-band geomagnetic induction instrumentation〈/a〉〈br〉 (Dragert, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0025.pdf"〉Seismic noise at 2 Hz in Europe〈/a〉〈br〉 (Plešinger, A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0026.pdf"〉Crustal structure under the Ionian Sea〈/a〉〈br〉 (Weigel, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0028.pdf"〉Heat-Flow Measurements in Swiss Lakes〈/a〉〈br〉 (Von Herzen, R. P.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0029.pdf"〉Makroseismische Abschätzungen von Herdparametern österreichischer Erdbeben aus den Jahren 1905 - 1973〈/a〉〈br〉 (Franke, A., Gutdeutsch, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0030.pdf"〉Long range propagation of seismic energy in the lower lithosphere〈/a〉〈br〉 (Kind, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0033.pdf"〉Palaeomagnetism of tertiary volcanic rocks from the Ethiopian southern plateau and the Danakil Block〈/a〉〈br〉 (Schult, A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0034.pdf"〉Calculation of the shape and position of the last closed field line boundary and the coordinates of the magnetopause neutral points in a theoretical magnetospheric field model〈/a〉〈br〉 (Voigt, G.-H.))〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0037.pdf"〉Doppler shift of auroral backscatter signals〈/a〉〈br〉 (Czechowsky, P.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0038.pdf"〉Spherical harmonic analysis of the DS-field during magnetic storms〈/a〉〈br〉 (Schreiber, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0041.pdf"〉Note on determining hourly mean values〈/a〉〈br〉 (Larsen, J. C.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0042.pdf"〉Seismic observations in Germany of a 10 t explosion off Scotland〈/a〉〈br〉 (Bonjer, K.-P., Kaminski, W., Kind, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0044.pdf"〉A method to reduce the measuring time for spinner magnetometers〈/a〉〈br〉 (Hummervoll, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0045.pdf"〉Book Reviews〈/a〉〈br〉 (Mayer, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0046.pdf"〉Transverse plasma waves in the solar wind close to the proton gyrofrequency〈/a〉〈br〉 (Rehn, H. W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0047.pdf"〉Die magnetische Anomalie der Ivreazone〈/a〉〈br〉 (Albert, G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0052.pdf"〉Second meeting of the European Geophysical Society〈/a〉〈br〉〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0053.pdf"〉On a high-frequency method for the measurement of susceptibilities and hysteresis losses of rocks and minerals between nitrogen temperature and 700 °C〈/a〉〈br〉 (Markert, H., Trissl, K.-H., Zimmermann, G. J.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0054.pdf"〉Kinetics of oxidation processes in titanomagnetites〈/a〉〈br〉 (Kropáček, V.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0056.pdf"〉Ultra sound absorption measurements in rock samples at low temperatures〈/a〉〈br〉 (Herminghaus, Ch., Berckhemer, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0058.pdf"〉Recordings with the Askania borehole tiltmeter (vertical pendulum) in the frequency range of earth's free oscillations〈/a〉〈br〉 (Flach, D., Große-Brauckmann, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0060.pdf"〉Heat flow measurements in northern Italy and heat flow maps of Europe〈/a〉〈br〉 (Haenel, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0062.pdf"〉Die Bestimmung der Transmissivität von Grundwasserleitern aus dem Einschwingverhalten des Brunnen-Grundwasserleitersystems〈/a〉〈br〉 (Krauss, I.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0063.pdf"〉Symposium on "Geomagnetic Anomalies, Rock Magnetism and Petrography"〈/a〉〈br〉 (Hahn, A., Hall, D. H., Dunlop, D. J., Kobayashi, Kazuo, Nomura, Masafumi, Lidiak, E. G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0090.pdf"〉The AEROS mission〈/a〉〈br〉 (Lämmerzahl, P., Bauer, S. J.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0091.pdf"〉The AEROS-EUV Spectrometer〈/a〉〈br〉 (Schmidtke, G., Schweizer, W., Knothe, M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0092.pdf"〉The retarding potential analyzer on AEROS-B〈/a〉〈br〉 (Spenner, K., Dumbs, A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0094.pdf"〉Impedance probe. The AEROS-B electron density experiment〈/a〉〈br〉 (Neske, E., Kist, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0095.pdf"〉The AEROS neutral and ion mass-spectrometer〈/a〉〈br〉 (Krankowsky, D., Lämmerzahl, P., Bonner, F., Wieder, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0096.pdf"〉The neural atmosphere temperature experiment〈/a〉〈br〉 (Spencer, N. W., Pelz, D. T., Niemann, H. B.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0097.pdf"〉Atmospheric drag analysis with the AEROS Satellite〈/a〉〈br〉 (Roemer, Max, Wulf-Mathies, Carsten)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0098.pdf"〉Electromagnetic reflections in salt deposits〈/a〉〈br〉 (Thierbach, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0100.pdf"〉The structure of the Ries crater from geoelectric depth soundings〈/a〉〈br〉 (Ernstson, K.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0102.pdf"〉Measurements of magnetic total field anomalies in the Hon Graben, Libya〈/a〉〈br〉 (Schult, A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0103.pdf"〉Correction〈/a〉〈br〉〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0104.pdf"〉Book reviews〈/a〉〈br〉 (Theile, B.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0105.pdf"〉Interplanetary magnetic fields and the propagation of cosmic rays〈/a〉〈br〉 (Wibberenz, G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0106.pdf"〉Intensity and energy spectrum of electrons accelerated in the earth's bow shock〈/a〉〈br〉 (Anderson, K. A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0107.pdf"〉Evidence from particle precipitation of two-way-convection in auroral latitudes〈/a〉〈br〉 (Hultqvist, B.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0110.pdf"〉Investigation of electron dynamics in the magnetosphere with electron beams injected from sounding rockets〈/a〉〈br〉 (Winckler, J. R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0113.pdf"〉Cosmic ray electrons in the atmosphere〈/a〉〈br〉 (Fulks, G., Meyer, P.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0114.pdf"〉Cosmic rays underground and the interplanetary magnetic field〈/a〉〈br〉 (Regener, Victor H., Regener, Eric)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0115.pdf"〉Harmonic temperature waves in a horizontally layered medium〈/a〉〈br〉 (Mundry, E.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0118.pdf"〉No transform faults on the moon〈/a〉〈br〉 (Stegena, L., Bérczi, Sz.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0121.pdf"〉Dominating trends of the anomalies of the gravity and magnetic fields in NE France and SW Germany〈/a〉〈br〉 (Edel, J. B.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0040/LOG_0122.pdf"〉Book Reviews〈/a〉〈br〉 (Strobach, K., Petersen, Nikolai)〈/a〉〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Aeronomy ; AEROS (satellite) ; Africa ; Alps ; Applied Geophysics ; Aurora ; Austria ; Bow Shock of Earth ; Canada ; Cosmic Rays ; Crustal Structure ; Earthquakes ; Europe ; France ; Free Oscillation of Earth ; Geoelectrics ; Geomagnetic Anomalies ; Geomagnetic Deep Sounding ; Geomagnetic Secular Variation ; Geomagnetic Time Variations ; Gravity Anomalies ; Gravity ; Geothermics ; Germany ; Great Britain ; Heat Flow ; Hydrology ; Interplanetary Magnetic Field ; Ionian Sea ; Ionosphere ; Italy ; Lunar Seismology ; Lunar Tectonism ; Macquarie-Inseln ; Magnetosphere ; Mantle of Earth ; Marine Geophysics ; Pacific Ocean ; Paleomagnetism ; Particle Acceleration ; Plasma Waves ; Radio Waves ; Ries Crater ; Rock Magnetism ; Rock Physics ; Salt Deposits ; Seismic Deep Sounding ; Seismic Noise ; Seismic Refraction Measurements ; Seismic Wave Absorption ; Seismology ; Solar EUV Radiation ; Solar Wind ; Switzerland ; Tectonophysics ; Tiltmeter ; United States ; USSR ; Viscosity of Earth ; FID-GEO-DE-7
    Language: German , English
    Type: anthology_digi
    Location Call Number Expected Availability
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  • 4
    facet.materialart.
    Unknown
    Springer, Berlin
    In:  SUB Göttingen | 8 Z NAT 2148:45
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 44 Artikel zu Themengebieten der Seismologie, Erdmagnetismus und Gesteinsphysik veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1978.
    Description: Inhaltsverzeichnis: Journal of Geophysics 45 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0010.pdf"〉Magnetotelluric investigation of the lower crust and upper mantle Beneath Iceland〈/a〉〈br〉 (Beblo, M., Björnsson, A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0011.pdf"〉Damped and constrained least squares method with application to gravity interpretation〈/a〉〈br〉 (Vigneresse, J. L.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0012.pdf"〉Reappraisal of palaeomagnetism of the Colli Euganei and Monti Lessini Volcanics (Italy) 〈/a〉〈br〉 (Channell, J. E. T., De Zanche, V., Sedea, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0013.pdf"〉Reinterpretation of palaeomagnetism of the Colli Euganei and Monti Lessini (Italy) 〈/a〉〈br〉 (Soffel, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0014.pdf"〉Observations of the initial develpopment of an auroral and magnetic substorm at magnetic midnight〈/a〉〈br〉 (Untiedt, J., Pellinen, R., Küppers, F., Opgenoorth, H. J., Pelster, W. D., Baumjohann, W., Ranta, H., Kangas, J., Czechowsky, P., Heikkila, W. J.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0015.pdf"〉Ionospheric observation of gravity-waves associated with hurricane Eloise〈/a〉〈br〉 (Hung, R.J., Kuo, J. P.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0016.pdf"〉On the annual wave of hemispheric geomagnetic activity〈/a〉〈br〉 (Damaske, D.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0017.pdf"〉Solar electron fluxes, increased geomagnetic activity and ionospheric absorption following selected flares〈/a〉〈br〉 (Märcz, F.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0018.pdf"〉The H amplitude of sudden commencements of magnetic storms at Sabhawala (Dehra Dun) 〈/a〉〈br〉 (Jain, A. R., Sastri, N. S.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0019.pdf"〉Crustal structure of the Reykjanes Ridge at 63° N derived from seismic measurements〈/a〉〈br〉 (Snoek, M., Goldflam, S.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0020.pdf"〉Book review〈/a〉〈br〉 (Strobach, K.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0021.pdf"〉Electron density in the South Atlantic anomaly region〈/a〉〈br〉 (Noor Sheikh, M., Rawer, K., Neske, E.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0023.pdf"〉Inversion of satellite magnetic anomaly data〈/a〉〈br〉 (Mayhew, M. A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0026.pdf"〉The effect of earth structure on radial oscillations〈/a〉〈br〉 (Wang, C., Cleary, J. R., Anderssen, R. S.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0027.pdf"〉Relationship between the seismic quality factor Q and the effective viscosity η〈/a〉〈br〉 (Meissner, R. O., Vetter, U. R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0028.pdf"〉The wave field associated with a fine structured moho in continents and oceans〈/a〉〈br〉 (Kosminskaya, I. P., Kapustian, N. K.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0029.pdf"〉Tidal triggering of earthquakes in the Swabian jura? 〈/a〉〈br〉 (Young, D., Zürn, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0030.pdf"〉Theoretical investigations on acoustic remote sensing of ocean surface waves〈/a〉〈br〉 (Essen, H.-H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0031.pdf"〉A comparison of results of geothermal and magnetotelluric investigations in northwestern Germany〈/a〉〈br〉 (Knödel, K., Losecke, W., Wohlenberg, J.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0032.pdf"〉Effect of the coastline configuration of south Indian and Sri Lanka regions on the induced field at short period〈/a〉〈br〉 (Takeda, M., Maeda, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0034.pdf"〉Correction of graphs concerning the Chapman-Ferraro image method〈/a〉〈br〉 (Burkard, O. M., Rucker, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0036.pdf"〉On the difference between polarisation and coherence〈/a〉〈br〉 (Jones, A. G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0037.pdf"〉Palaeosecular variation studies of the Brunhes epoch in the volcanic province of the East-Eifel, Germany〈/a〉〈br〉 (Kohnen, H., Westkämper, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0038.pdf"〉Book review〈/a〉〈br〉 (Vees, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0039.pdf"〉Sixth annual meeting of the European Geophysical Society〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0040.pdf"〉Partial self-reversal of natural remanent magnetization of an historical lava flow of Mt. Etna (Sicily) 〈/a〉〈br〉 (Heller, F., Markert, H., Schmidbauer, E.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0044.pdf"〉Palaeomagnetic study of the tertiary volcanics of Sardinia〈/a〉〈br〉 (Edel, J.-B.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0046.pdf"〉Analysis of an eastward electrojet by means of upward continuation of ground-based magnetometer data〈/a〉〈br〉 (Mersmann, U., Baumjohann, W. Küppers, F., Lange, K.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0048.pdf"〉Non-linear rheology and return flow in the mantle〈/a〉〈br〉 (Jacoby, W. R., Ranalli, G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0051.pdf"〉Crustal and upper mantle structure beneath the Apennines region as inferred from the study of Rayleigh waves〈/a〉〈br〉 (Calcagnile, G., Panza, G. F.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0053.pdf"〉On the coastal effect on geoelectrical soundings〈/a〉〈br〉 (Mundry, E., Worzyk, P.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0054.pdf"〉Observations of sPn from Swabian Alb earthquakes at the GRF array〈/a〉〈br〉 (Kind, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0055.pdf"〉Macroseismic intensity map of Austria for the Swabian Alb earthquake of September 3, 1978〈/a〉〈br〉 (Drimmel, J., Fiegweil, E., Lukeschitz, G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0056.pdf"〉Das Schwerefeld im Bereich der Nordfriesischen Inseln und des benachbarten Festlands〈/a〉〈br〉 (Plaumann, S.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0057.pdf"〉Probable relations between seismic anisotropy and a fine structure of the lithosphere〈/a〉〈br〉 (Meissner, R. O., Flüh, E. R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0058.pdf"〉Book reviews〈/a〉〈br〉 (Burkhardt, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0059.pdf"〉Reinterpretation of a deep-seismic-sounding profile on the Ukrainian shield〈/a〉〈br〉 (Jentsch, M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0062.pdf"〉Extensions of the reflectivity method〈/a〉〈br〉 (Kind, R.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0063.pdf"〉Ray amplitudes of compressional, shear and converted seismic body waves in 3D laterally inhomogeneous media with curved interfaces〈/a〉〈br〉 (Pšenčík, I.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0064.pdf"〉Spectral analysis of Pc3 and Pc4 pulsations with regard to the dayside plasmapause position〈/a〉〈br〉 (Palandt, M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0065.pdf"〉A theoretical investigation of the dipole- and unipole-resistivity methods for geoelectrical prospecting in Marine areas〈/a〉〈br〉 (Sebulke, J., Hildebrandt, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0066.pdf"〉Paleomagnetism and rock magnetism of the Pliocene Rhyolite at San Vincenzo, Tuscany, Italy〈/a〉〈br〉 (Lowrie, W., Alvarez, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0067.pdf"〉On the presence of titanomagnetite in basalts〈/a〉〈br〉 (Radhakrishnamurty, C., Deutsch, E. R., Murthy, G. S.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0045/LOG_0068.pdf"〉Palaeomagnetism of permo-triassic red sandstones from the northern Calcareous Alps〈/a〉〈br〉 (Soffel, H.)〈/a〉〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Aurora ; Auroral Electrojet ; Austria ; Chapman-Ferraro Model ; Crustal Structure ; Earth Models ; Earthquakes ; Earth's Mantle ; Electrical Conductivity Anomalies ; Electromagnetic Induction ; Explosion Seismology ; Free Oscillation of Earth ; Geoelectrics ; Geomagnetic Activity ; Geomagnetic Pulsations ; Geothermics ; Germany ; Gravity Anomalies ; Hurricanes ; Iceland ; India ; Inverse Problems ; Ionosphere ; Ionosphäre ; Italy ; Lithosphere ; Magnetic Anomalies ; Magnetotellurics ; Moho ; Ocean Surface Waves ; Palaeomagnetism ; Polarisation Analysis ; Plasmapause ; Remote Sensing ; Rock Magnetism ; Seismic Anisotropy ; Seismicity ; Seismic Quality Factor Q ; Seismic Surface Waves ; Theoretical Seismograms ; USSR ; Viscosity of Earth ; FID-GEO-DE-7
    Language: German , English
    Type: anthology_digi
    Location Call Number Expected Availability
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  • 5
    facet.materialart.
    Unknown
    Springer, Berlin
    In:  SUB Göttingen | 8 Z NAT 2148:54
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 29 Artikel zu Themengebieten der Geophysik, veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1984.
    Description: Inhaltsverzeichnis: Journal of Geophysics 54 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0011.pdf"〉Plate Dynamics and Isostasy in a Dynamic System〈/a〉〈br〉 (Officer, C. B., Drake, C. L.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0012.pdf"〉Rheological Properties and Velocity Dispersion of a Medium with Power-Law Dependence of 〈i〉Q〈/i〉 on Frequency〈/a〉〈br〉 (Müller, G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0013.pdf"〉Peculiarities of Mantle Waves from Long-Range Profiles〈/a〉〈br〉 (Yegorkin, A. V., Chernyshov, N. M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0015.pdf"〉Geomagnetic Induction Studies in Scandinavia〈/a〉〈br〉 (Jones, A. G., Olafsdottir, B., Tiikkainen, J.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0016.pdf"〉Subsurface Thermal Conditions of Puga Valley Hydrothermal Field, Himalaya, India〈/a〉〈br〉 (Gupta, M. L., Sharma, S. R., Drolia, R. K., Singh, S. B.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0018.pdf"〉Interplanetary Magnetic Field Power Spectra with Frequencies from 2.4 x 10〈sup〉-5〈/sup〉 Hz to 470 Hz from HELIOS-Observations During Solar Minimum Conditions〈/a〉〈br〉 (Denskat, K. U., Beinroth, H. J., Neubauer, F. M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0019.pdf"〉Increased NO-Concentration Contributing to the Enhancement of Radio Wave Absorption Following Geomagnetic Storms〈/a〉〈br〉 (Märcz, F.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0020.pdf"〉A Comparison of Deep Geoelectric Structure in the Pannonian Basin and on the Baltic Shield〈/a〉〈br〉 (Ádám, A., Vanyan, L. L., Hjelt, S. E., Kaikkonen, P., Shilovsky, P. P., Palshin, N. A.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0021.pdf"〉Discrete Chorus Emissions Observed at Varanasi〈/a〉〈br〉 (Khosa, P. N., Lalmani, Ahmad, M. M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0022.pdf"〉Die Thermische Evolution der Erde Thermal Evolution of the Earth〈/a〉〈br〉 (Spohn, T.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0023.pdf"〉Radiometric Dating on Research Drill Core Urach III: A Contribution to its Geothermal History〈/a〉〈br〉 (Hammerschmidt, K., Wagner, G. A., Wagner, M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0024.pdf"〉Heat Flow Density Determination in the Strymon Basin, NE Greece〈/a〉〈br〉 (Erki, I., Kolios, N., Stegena, L.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0025.pdf"〉Isostatic Compensation and Continental Lithospheric Thickness〈/a〉〈br〉 (Wolf, D.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0026.pdf"〉Restoration of Broad-Band Seismograms (Part I) 〈/a〉〈br〉 (Seidl, D., Stammler, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0027.pdf"〉Effect of Parallel Electric Fields on Whistler Mode Waves in Jupiter's Magnetosphere〈/a〉〈br〉 (Khosa, P. N., Lalmani, Ahmad, M. M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0028.pdf"〉On the Influence of Ionospheres with Non-Uniform Conductivity Distribution on Hydromagnetic Waves〈/a〉〈br〉 (Glaßmeier, K.-H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0031.pdf"〉Three-Dimensional Analysis of Magnetometer Array Data〈/a〉〈br〉 (Richmond, A. D., Baumjohann, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0032.pdf"〉Global Geomagnetic Impulses in Annual Intensity Changes〈/a〉〈br〉 (Srivastava, B. J., Abbas, H.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0034.pdf"〉A Paleomagnetic Study Tertiary Volcanics from the Hocheifel (Germany) and the Cenozoic Apparent Polar Wander Path of Central Europe〈/a〉〈br〉 (Weinreich, N., Bleil, U.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0035.pdf"〉Estimate of Confidence in Paleomagnetic Directions Derived from Mixed Remagnetization Circle and Direct Observational Data〈/a〉〈br〉 (Bailey, R. C., Halls, H. C.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0036.pdf"〉Converted Phases from the Mantle Transition Zone Observed at European Stations〈/a〉〈br〉 (Faber, S., Müller, G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0038.pdf"〉Calculation of Synthetic Seismograms for Complex Subsurface Geometries by a Combination of Finite Integral Fourier Transforms and Finite Difference Techniques〈/a〉〈br〉 (Mikhailenko, B. G., Korneev, V. I.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0039.pdf"〉Reduction of Satellite Magnetic Anomaly Data〈/a〉〈br〉 (Langel, R. A., Slud, E. V., Smith, P. J.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0041.pdf"〉Local Time Dependence of the Response of the Equatorial Electrojet to DP2 and SI Disturbances〈/a〉〈br〉 (Papamastorakis, I., Haerendel, G., Baumjohann, W.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0042.pdf"〉Radiation Belt Particles and OII Emissions Determined as Contaminations of Geocoronal Helium Airglow Observations〈/a〉〈br〉 (Fahr, H. J., Lay, G.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0043.pdf"〉A Note Concerning the Interpretation of the B〈sub〉||〈/sub〉-Component in Geomagnetic Pulsation Data〈/a〉〈br〉 (Krummheuer, F., Siebert, M.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0044.pdf"〉On the Relation Between Two-Dimensional and Axisymmetric Loads in Plate Flexure Problems〈/a〉〈br〉 (Wolf, D.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0045.pdf"〉Laudatio Waldemar Zettel 80 Jahre〈/a〉〈br〉〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0054/LOG_0046.pdf"〉Book Reviews〈/a〉〈br〉 (Schröder, W.)〈/a〉〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 550 ; Asthenosphere ; Earth's Crust ; Earth's Mantle ; Geomagnetic Pulsations ; Geothermics ; Germany ; Ionosphere ; Lithosphere ; Magnetotellurics ; Paleomagnetism ; Seismograms ; FID-GEO-DE-7
    Language: German , English
    Type: anthology_digi
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  • 6
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    Springer, Berlin
    In:  SUB Göttingen | 8 Z NAT 2148
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 34 Artikel zu Themengebieten der Geophysik, veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1980.
    Description: Inhaltsverzeichnis: Journal of Geophysics 47 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0011.pdf"〉Iceland: Evolution, Active Tectonics, and Structure. A Preface〈/a〉〈br〉 (Jacoby, W. R., Björnsson, A., Möller, D.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0012.pdf"〉Tectonic Framework, Evolution. A Continuum Model of Crustal Generation in Iceland; Kinematic Aspects〈/a〉〈br〉 (Pálmason, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0013.pdf"〉Hawaiian Rifts and Recent Icelandic Volcanism: Expressions of Plume Generated Radial Stress Fields〈/a〉〈br〉 (Wyss, M.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0014.pdf"〉Observations of the Morphology and Structure of the Sea Floor South and West of Iceland〈/a〉〈br〉 (Johnson, G. L., Pálmason, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0015.pdf"〉Stratigraphy and Paleomagnetism of the Esja, Eyrarfjall and Akrafjall Mountains, SW-Iceland〈/a〉〈br〉 (Kristjansson, L., Fridleifsson, I. B., Watkins, N. D.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0016.pdf"〉Magnetic Anomalies (〈i〉ΔZ〈/i〉) in NE-Iceland and Their Interpretation Based on Rock-Magnetic Investigations〈/a〉〈br〉 (Becker, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0017.pdf"〉Palaeointensity Measurement on Postglacial Lavas From Iceland〈/a〉〈br〉 (Schweitzer, Ch., Soffel, H. C.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0018.pdf"〉On the Evolution of the Reykjanes Ridge South of 60° N Between 40 and 12 Million Years Before Present〈/a〉〈br〉 (Voppel, D., Rudloff, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0019.pdf"〉Morphology and Magnetic Anomalies North of Iceland〈/a〉〈br〉 (Vogt, P. R., Johnson, G. L., Kristjansson, L.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0020.pdf"〉Morphology of the Reykjanes Ridge Crest Near 62°N〈/a〉〈br〉 (Jacoby, W. R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0021.pdf"〉New Heat Flow Observations on the Reykjanes Ridge〈/a〉〈br〉 (Bram, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0022.pdf"〉Gravity and a Model of the Median Valley〈/a〉〈br〉 (Collette, B. J., Verhoef, J., de Mulder, A. F. J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0023.pdf"〉Deformation, Stress, Seismicity. Statistical Analysis of Damaging Earthquakes and Volcanic Eruptions in Iceland From 1550–1978〈/a〉〈br〉 (Gudmundsson, G., Saemundsson, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0024.pdf"〉Geodetic Measurements and Horizontal Crustal Movements in the Rift Zone of NE-Iceland〈/a〉〈br〉 (Möller, D., Ritter, B.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0025.pdf"〉Results of Height Measurements in Northern Iceland 1965/1977〈/a〉〈br〉 (Spickernagel, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0026.pdf"〉Gravity and Height Variations During the Present Rifting Episode in Northern Iceland〈/a〉〈br〉 (Torge, W., Kanngieser, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0027.pdf"〉Gravity and Elevation Changes Caused by Magma Movement Beneath the Krafla Caldera, Northeast Iceland〈/a〉〈br〉 (Johnson, G. V., Björnsson, A., Sigurdsson, S.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0028.pdf"〉Subsidence Events in the Krafla Area, North Iceland, 1975–1979〈/a〉〈br〉 (Tryggvason, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0029.pdf"〉Surface Deformation of the Krafla Fissure Swarm in Two Rifting Events〈/a〉〈br〉 (Sigurdsson, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0030.pdf"〉Seismological Evidence for Lateral Magma Intrusion During the July 1978 Deflation of the Krafla Volcano in NE-Iceland〈/a〉〈br〉 (Einarsson, P., Brandsdóttir, B.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0031.pdf"〉Measurement of Distance and Tilt Changes in Fissures of Northern Iceland〈/a〉〈br〉 (Pelzer, H., Gerstenecker, C.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0032.pdf"〉Recent Earthquakes in the Hengill-Hellisheidi Area in SW-Iceland〈/a〉〈br〉 (Foulger, G., Einarsson, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0033.pdf"〉Rock Stress in an Icelandic Thermal Area, With Implications on Stresses in the Oceanic Lithosphere〈/a〉〈br〉 (Voight, B., Simon, R., Thorsteinsson, T., Pálmason, G., Taylor, C., Seret Opzoomer-Talma, S. H., Haimson, B. C.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0034.pdf"〉Crustal and Upper Mantle Structure. A Model of Electrical Resistivity Beneath NE-Iceland, Correlation with Temperature〈/a〉〈br〉 (Beblo, M., Björnsson, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0035.pdf"〉A Seismic Study of the Rift Zone in Northern Iceland〈/a〉〈br〉 (Zverev, S. M., Litvinenko, I. V., Pálmason, G., Yaroshevskaya, G. A., Osokin, N. N., Akhmetjev, M. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0036.pdf"〉A Seismic Crustal Study of the Axial Rift Zone in Southwest Iceland〈/a〉〈br〉 (Zverev, S. M., Litvinenko, I. V., Pálmason, G., Yaroshevskaya, G. A., Osokin, N. N.)〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0037.pdf"〉Seismic Structure of the Icelandic Crust Above Layer Three and the Relation Between Body Wave Velocity and the Alteration of the Basaltic Crust〈/a〉〈br〉 (Flóvenz, Ó. G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0038.pdf"〉Crustal Structure of the Iceland-Faeroe Ridge〈/a〉〈br〉 (Bott, M. H. P., Gunnarsson, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0039.pdf"〉Reykjanes Ridge Iceland Seismic Experiment (RRISP 77)〈/a〉〈br〉 (Angenheister, G., Gebrande, H., Miller, H., Goldflam, P., Weigel, W., Jacoby, W. R., Pálmason, G., Björnsson, S., Einarsson, P., Pavlenkova, N. I., Zverev, S. M., Litvinenko, I. V., Loncarevic, B., Solomon, S. C.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0040.pdf"〉Seismic Structure of Iceland Along RRISP-Profile I〈/a〉〈br〉 (Gebrande, H., Miller, H., Einarsson, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0041.pdf"〉Seismic Structure Along RRISP – Profile I on the Southeast Flank of the Reykjanes Ridge〈/a〉〈br〉 (Goldflam, P., Weigel, W., Loncarevic, B. D.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0042.pdf"〉Crustal Development of the Reykjanes Ridge From Seismic Refraction〈/a〉〈br〉 (Bunch, A. W. H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0043.pdf"〉Reykjanes Ridge Crest Studied by Surface Waves With an Earthquake-Pair Technique〈/a〉〈br〉 (Keen, C. E., Fricker, A., Keen, M. J., Blinn, L.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN1015067948_0047/LOG_0044.pdf"〉The Evolution of the Lithosphere at the Southeast Flank of Reykjanes Ridge From Surface Wave Data〈/a〉〈br〉 (Jacoby, W. R., Girardin, N.)〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Asthenosphere ; Crust and Upper Mantle ; Deformation ; Dynamic Models ; Earthquake Statistics ; Evolution of Crust and Lithosphere ; Geodetic Measurements ; Geothermics ; Gravity ; Heat Flow, Geothermics ; History of Geophysics ; lsostasy ; Lithosphere ; Magma Movement ; Magnetic Anomalies ; Magnetotellurics ; Paleomagnetism ; Plate Tectonics ; Plume Hypothesis ; Ridge Model ; Ridge Structure ; Ridge Topography ; Rifting and Volcanism ; Rock Magnetism ; Seafloor Spreading ; Seafloor Morphology ; Seismic Anisotropy ; Seismicity ; Seismic Reflection ; Seismic Refraction ; Stress, Strain ; Surface Waves ; Temperature ; Velocity-Density Systematics ; Viscosity ; FID-GEO-DE-7
    Language: English
    Type: anthology_digi
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  • 7
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-03-03
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-04-14
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Unknown
    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-04-14
    Description: The allotropes formed by carbon reflect differences in its bonding: single bonds in diamond, double bonds in graphite and graphene, and triple bonds in polyynes. Fashioning graphene sheets into bowls, monkey saddles, balls, and tubes has led to a number of molecular allotropes of carbon or carbon-rich quasi-allotropes with novel topologies and shapes. A simple ring of carbon can be reduced to practice in various forms (1): a cyclic array of carbon atoms, a “pearl necklace” of benzene rings, or a cylindrical hoop of flank-fused benzenes, just to name a few. On page 172 of this issue, Povie et al. (2) report on the synthesis of an angular-fused hoop structure, which has been a long-standing target. Author: Jay S. Siegel
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-04-14
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 11
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    Unknown
    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-03-03
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-04-01
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 13
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-01-13
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-07-08
    Description: Author: Phil Szuromi
    Keywords: Organic Chemistry
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    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 15
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-07-08
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-05-27
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-07-15
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 18
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-07-22
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 19
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-06-24
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 20
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-07-01
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-06-10
    Description: Transition metal–catalyzed arylation of C–H bonds has been intensively studied for forming C–C bonds in complex-molecule synthesis (1). An acidic C–H bond (for example, one near a double bond or an O atom) is cleaved to form a carbon–metal bond, which then couples to arene. Many of these organometallic species can be generated catalytically. Much less research has dealt with unreactive nonacidic sp3 C–H bond functionalization (3). On page 1304 of this issue, Shaw et al. (3) report an efficient and general method that focuses on arylation of sp3 C–H bonds at carbon atoms adjacent to amines and to cyclic ethers by combining nickel, visible-light photoredox, and hydrogen-atom transfer (HAT) catalysis. Author: Corinne Fruit
    Keywords: Organic Chemistry
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  • 22
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-06-10
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 23
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-09-09
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 24
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-09-07
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 25
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-05-20
    Description: Antibiotics have been taking it on the chin lately. Not only has resistance to the anti-infective medications been growing, but drug companies have been dropping antibiotic research programs, because the drugs are difficult and expensive to make. Now, new help is on the way. Researchers report this week that they've found a way to churn out new members of one of the most widely used classes of antibiotics. These drugs, called macrolides, were first developed in the 1950s and now represent a major bulwark against infections. A bevy of possible new drugs in this class could lead to new weapons against antibiotic-resistant infections, and possibly save millions of lives. Author: Robert F. Service
    Keywords: Organic Chemistry
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  • 26
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-04-22
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 27
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-04-29
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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  • 28
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-05-13
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 29
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-04-01
    Description: The SN2 nucleophilic substitution reaction, X− + RY → XR + Y−, is a paradigm reaction in organic chemistry (1). The modern understanding of the SN2 reaction mechanism is based on work of Hughes and Ingold (2), who proposed that the nucleophile (X−) approaches the carbon atom that bears the leaving group (Y−). As a result, the bond between the carbon atom and the leaving group becomes weakened. As this bond breaks and a new bond forms between the nucleophile and the carbon atom, the configuration of the carbon atom is inverted. Analyses of gas-phase reaction rates led to the suggestion of a potential energy surface (PES) with two wells connected by a central barrier transition state (3). Electronic structure calculations have confirmed this picture for some SN2 reactions (4), but recent studies have shown that the actual reaction dynamics may be considerably more complex (see the figure) (5–8). Authors: Jing Xie, William L. Hase
    Keywords: Organic Chemistry
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  • 30
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-04-01
    Description: Author: Julia Fahrenkamp-Uppenbrink
    Keywords: Organic Chemistry
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  • 31
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-11-18
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 32
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-11-18
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 33
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-12-09
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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  • 34
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-10-21
    Description: Author: Jake Yeston
    Keywords: Organic Chemistry
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  • 35
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    In:  J. Geophys. Res., New York, August, vol. 89, no. 2, pp. 11180-11194, pp. TC2016, (ISSN: 1340-4202)
    Publication Date: 1984
    Keywords: Geothermics ; Tectonics ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; JGR
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  • 36
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    In:  Geophys. J. R. astr. Soc., Basel, Elsevier Science Publishers, vol. 79, no. 3, pp. 513-538, pp. B03304, (ISSN: 1340-4202)
    Publication Date: 1984
    Keywords: Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Tectonics ; Stress ; Strength ; Modelling ; Inelastic ; Plate tectonics ; Geothermics ; GJRaS
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  • 37
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    In:  J. Petrol., Münster, 3, vol. 25, no. 3, pp. 894-928, pp. L12311, (ISBN 0-471-26610-8)
    Publication Date: 1984
    Keywords: Geol. aspects ; Geothermics ; PTt ; petrology ; Tectonics
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  • 38
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    In:  Geowissenschaften in unserer Zeit, Basel, Inst. f. Geophys., Ruhr-Univ. Bochum, vol. 2, no. 3, pp. 73-81, pp. 1517, (ISSN: 1340-4202)
    Publication Date: 1984
    Keywords: Geothermics ; Energy (of earthquakes) ; Review article
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  • 39
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    In:  J. Geophys. Res., Minsk, Polish Geothermal Association, vol. 89, no. April, pp. 5733-5762, pp. B01405, (ISSN: 1340-4202)
    Publication Date: 1984
    Keywords: Plate tectonics ; Tectonics ; Geothermics ; Reflection seismics ; JGR
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  • 40
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    In:  J. Geophys. Res., Taipei, AGU, vol. 89, no. 6, pp. 7709-7718, pp. B05204, (ISSN: 1340-4202)
    Publication Date: 1984
    Keywords: Geothermics ; Subduction zone ; Plate tectonics ; Rheology ; JGR
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  • 41
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    In:  Ann. Geophys., Hannover, Dt. Geophys. Ges. e. V., vol. 2, no. B2, pp. 679-688, pp. 1058, (ISSN: 1340-4202)
    Publication Date: 1984
    Keywords: Lithosphere ; Geothermics ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Volcanology
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  • 42
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    Society of Petroleum Engineers
    In:  Dallas, Society of Petroleum Engineers, vol. 2, no. XVI:, pp. 1-14, (ISBN: 0-387-30752-4)
    Publication Date: 1984
    Keywords: Physical properties of rocks ; Geothermics ; Borehole geophys.
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  • 43
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    R. Oldenbourg Verlag
    In:  München, R. Oldenbourg Verlag, vol. 27, no. 16, pp. 220, (ISBN: 3540148477)
    Publication Date: 1984
    Keywords: Textbook of physics ; Geothermics ; UB: ; WIB1085
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  • 44
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    Inst. f. Meteorol. und Geophys. der Univ. Frankfurt/Main
    In:  Dissertation, Berichte, Hamburg, Inst. f. Meteorol. und Geophys. der Univ. Frankfurt/Main, vol. C 560, 183 pp., no. 57, pp. 333-342, (ISBN 3-933346-037)
    Publication Date: 1984
    Keywords: Seismics (controlled source seismology) ; Geothermics ; Laboratory measurements ; Inelastic
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  • 45
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    In:  CASI
    Publication Date: 2006-02-14
    Description: The specific objectives of this experiment are to establish the population and size distribution of meteoroids in the mass range from 10 to the minus 10 power to 10 to the minus 4 power G, to establish the current population of man-made debris in the same mass range, and to obtain data on the physical properties (composition and density) of meteoroids.
    Keywords: ASTROPHYSICS
    Type: Long Duration Exposure Facility (LDEF); p 136-137
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  • 46
    Publication Date: 2006-02-14
    Description: The objective of this experiment is to study interplanetary dust, variously referred to as cosmic dust, cometary dust, zodiacial dust, or meteoric dust particles. Specific objectives are to obtain information regarding particle mass and velocity, and to undertake correlative analyses with other experiments, both on LDEF or near the time of the LDEF flight.
    Keywords: ASTROPHYSICS
    Type: Long Duration Exposure Facility (LDEF); p 134-135
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  • 47
    Publication Date: 2006-02-14
    Description: The primary objective of this experiment is to investigate the feasibility of future missions of multilayer thin-film detectors acting as energy sorter to collect micrometeoroids, if not in their original shape, at least as fragments suitable for chemical analysis. It is expected that this kind of particle collector will help in solving one of the most puzzling topics in cosmic-dust studies: the mineralogical and chemical composition of the particles. This is a matter of great interest in the study of the origin and evolution of the solar system.
    Keywords: ASTROPHYSICS
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 124-126
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  • 48
    Publication Date: 2006-02-14
    Description: The objectives of this experiment are to collect and isotopically analyze interstellar gas atoms around the orbit of the Earth for the purpose of obtaining new data relevant to understanding nucleosynthesis, and to study the dynamics of the interstellar wind inside the heliosphere and the isotopic composition of the interstellar medium outside the heliosphere. The experiment hardware will act as a set of simple cameras with high-purity copper-beryllium collecting foils serving as the film. The experiment housing will mount and thermally control the foils, establish the viewing angles and viewing direction, provide baffling to reject ambient neutral particles, provide a voltage grid to reject ionospheric charged particles, sequence collecting foils, control exposure times, and protect the foils from contamination during the deployment and retrieval of the LDEF. After being returned to Earth, the entrapped atoms can be analyzed by mass spectroscopy to determine the relative abundance of the different isotopes of helium and neon. An attempt will also be made to detect argon.
    Keywords: ASTROPHYSICS
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 98-100
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  • 49
    Publication Date: 2011-08-18
    Description: High spatial resolution images of the T Tauri star HL Tau were obtained at 1.6 microns and 2.2 microns. The original images as well as maximum entropy image reconstructions reveal a circumstellar envelope structure, similar at both wavelenghts, and extended along P.A. = 112 deg; the 10 percent width of the structure is 1.9 sec (300 AU at 160 pc). The extended structure is interpreted as light scattered toward earth by dust in a disk surrounding this young stellar object. Polarization measurements made at 2.2 microns support this hypothesis. The total solid particle mass is, at minimum, 5 x 10 to the -7th solar mass.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 283; L57-L61
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  • 50
    Publication Date: 2011-08-18
    Description: Systematics of the light curves of classical Cepheids with the longest known periods have been investigated with the help of full-amplitude models of pulsating stellar envelopes. For periods exceeding about 60 days, flat-topped light curves of the S Vul type are found to replace the smooth, asymmetric light curves characteristic of the slightly faster Cepheids. Predicted light and velocity amplitudes (although not the predicted radius amplitudes) agree well with observations. Variables with fluctuating light minima are observed to lie well off the mean period-luminosity relation, as are a few other (more stable?) variables with similarly long periods. The explanation for the long periods is probably low effective temperature rather than a low stellar mass. Because of the abnormal slowness of the classical Cepheids with periods longer than about 100 days, it is recommended that these variables not be used to calibrate the mean period-luminosity relation. Analogies between the slow classical Cepheids and the slow Population II Cepheids are drawn.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 281; 811-814
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  • 51
    Publication Date: 2011-08-18
    Description: The mechanism responsible for the massive rapidly expanding Galactic feature known as the 3-kpc arm (Rougoor and Oort, 1960) is investigated theoretically in the framework of a density-wave model of the Galaxy. The arm is attributed to outgoing waves excited at the outer Lindblad resonance (OLR) of a small rotating oval distortion near the Galactic center. Linear and nonlinear models are developed, and it is shown that a density crest at 3.5 kpc with expansion velocity 53 km/s can be generated by a distortion turning at 118 km/s kpc with a 10-percent perturbation of the main gravitational field at the OLR (located at 3 kpc). The wave character of the nonlinear solution is found to be the same as that of the linear solution and to give good agreement with the observations in terms of expansion velocity, size, shape, and mass; only the observed asymmetry of the arm is not reproduced.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 281; 600-613
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  • 52
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    In:  Other Sources
    Publication Date: 2011-08-18
    Description: A complete redshift survey of nearby rich galactic clusters is analyzed in terms of a spatial correlation function, the growth of supercluster, the presence of superclusters around the Bootes void and the discovery of a 300 Mpc void. Abell's (1958) statistical sampling of rich clusters is used for the study. Attention is given to the dependence of the correlation function on the richness of the system, with finding that chances are greater of finding rich neighbors closer together than poor neighbors. Samples of redshifts of 4 or less correlate well with clusters of redshift 5 or more. The size of intergalactic voids is proportional to the surrounding galactic excesses. Finally, the superclusters exist on scales of about 100 Mpc/h, which is larger than expected.
    Keywords: ASTROPHYSICS
    Type: Advances in Space Research (ISSN 0273-1177); 3; 10-12
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  • 53
    Publication Date: 2011-08-18
    Description: An extensive survey of ultraviolet O type spectra, by means of high-resolution data from the International Ultraviolet Explorer archives, shows a strong correlation between both the photospheric and stellar wind features, and the optical spectral types. In particular, the stellar wind effect in the Si IV resonance doublet displays a strong luminosity dependence which has not been completely described before: there is no effect anywhere on the main sequence, but it develops gradually through the intermediate luminosity classes into a full P Cygni profile in the supergiants. This behavior is in sharp contrast to that of the C IV and N V, which have strong P Cygni profiles throughout most of the O type domain, including the main sequence. The Si IV effect simultaneously provides a sensitive classification criterion and poses an outstanding problem for detailed astrophysical interpretation. In addition, a new emission feature at 1574 A, possibly due to N III or to N IV forbidden line, is reported.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 280; L27-L30
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  • 54
    Publication Date: 2011-08-18
    Description: The observations of relatively narrow absorption components of the UV resonance lines in the spectra of early-type stars are reviewed, and some new observational data are presented for Rho Leo (B1 Ib). It is shown that the discrete components which are seen in the UV resonance lines of early-type stars are a result of ejection from local spots above the photospheres of hot stars. It is suggested that localized ejection is caused by magnetic flux lines associated with a bipolar magnetic region on the surface of the star.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 280; 712-728
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  • 55
    Publication Date: 2011-08-18
    Description: Phenomenological fits to the hard X-ray spectrum of AM Hercules have failed to explain the high equivalent width (0.8 + or - 0.1 keV) of Fe K-alpha emission. The scattering and fluorescent line production in a cold or partially ionized accretion column of hard X-rays emitted at the base are investigated using the Monte Carlo method. It is shown that the Fe emission equivalent width observed in the spectrum of AM Her can be explained without resorting to an overabundance of Fe in the accreting material. For sufficient optical depth across the accretion column, equivalent widths of K-alpha emission even larger than the observed values can be obtained. The accretion rate and gravitational power can be deduced from the optical depth across the column, if the column size is known, and, together with the observed hard X-ray and polarized light luminosities, imply a lower limit for the luminosity in the UV to soft X-ray range, for which the observations give model-dependent values.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 280; 734-743
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  • 56
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    In:  Other Sources
    Publication Date: 2011-08-18
    Description: The present investigation has the objective to provide a summary of the existing evidence on the disappearance of comets and to draw conclusions regarding the physical processes involved in the disappearance. Information concerning the classification of evidence and the causes of apparent disappearance of comets is presented in a table. Attention is given to the dissipating comets, the headless sungrazing comet 1887 I, and the physical behavior of the dissipating comets and the related phenomena. It is found that all comets confined to the planetary region of the solar system decay on astronomically short time scales. However, only some of them appear to perish catastrophically. Some of the observed phenomena could be successfully interpreted. But little insight has been obtained into the character of the processes which the dissipating comets experience.
    Keywords: ASTROPHYSICS
    Type: Icarus (ISSN 0019-1035); 58; 81-100
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  • 57
    Publication Date: 2011-08-18
    Description: The X-ray properties of the binary black hole candidates include distinctive bimodal spectral behavior where the X-ray spectra switch between being very soft (alpha greater than 3) and hard (alpha about 0.7). It is pointed out that this spectral transition occurs at about 1 percent L(edd) (for accretion onto a 10 solar masses black hole), and that this corresponds to the luminosity where an optically thick electron-positron pair plasma will form. Active galactic nuclei (AGN) are often considered to be accreting black holes. An X-ray spectral similarity between the above binary sources and both the Seyfert I and BL Lac classes of AGN is demonstrated. As many of these objects radiate most of their luminosity as X-rays, such a similarity may be expected if the underlying mechanisms are similar.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 133; 2, Ap
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  • 58
    Publication Date: 2011-08-18
    Description: Preliminary results of an investigation of magnetic fluctuations seen upstream of two interplanetary shocks are presented. The spectral analysis includes calculation of the normalized reduced magnetic helicity spectrum, the normalized reduced cross-helicity spectrum, and the Alfven ratio as discussed by Matthaeus and Goldstein (1982). Minimum variance methods are used to compute wave polarization as a function of frequency. The Taylor 'frozen in flow' hypothesis is assumed to convert frequencies to wave vectors. Some of the basic properties of the waves, including the probable mode of propagation in association with both quasi-parallel forward and reverse shocks, are described. A comparison with previous results on the generation of waves at interplanetary and planetary shocks is presented.
    Keywords: ASTROPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 89; 3762-377
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  • 59
    Publication Date: 2011-08-18
    Description: The Crab pulsar (PSR 0531+21) is the only pulsar which has been observed throughout almost the entire electromagnetic spectrum from 0.5 keV to over 2000 GeV. In general, the emission from the Crab nebula and its pulsar has been remarkably constant in time (except for the pulsations). However, several recent observations, especially of gamma-ray line emission, indicate possible time variations. The present investigation is concerned with the data obtained with the HEAO C-1 experiment. The data have been studied with the hope of finding information regarding a number of questions, taking into account the existence of line emission from the pulsar, the variation of the shape of the light curve with time, and the spectral variations as a function of pulsar phase. The spectrum of the total phase-averaged pulsed emission is found to be consistent with a single power-law spectrum from 50 keV to 10 MeV.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 278; 784-790
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  • 60
    Publication Date: 2011-08-18
    Description: The HEAO 2 Einstein Observatory was used to confirm the identification of 4U 0352 + 30 with X Per. The HEAO 2 data were analyzed in order to determine an additional point in the pulse period history of the X-ray source and to search for short binary periods. In addition, a majority of the historical X-ray observations was reanalyzed and more refined values for the pulse period as a function of time were obtained. The period history possess significant scatter, but no evidence for a measurable long-term spin-up trend is found, and hence a lower limit to the spin-up time scale is set. This lower limit is consistent with the presence of a neutron star, but it does not rule out a degenerate dwarf. The period history was also searched for evidence of binary motion, and upper limits to a(x) sin i were obtained.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 278; 711-715
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  • 61
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    Publication Date: 2011-08-18
    Description: The results of continued IUE monitoring of the symbiotic variable SY Muscae, following an earlier report of a radical enhancement in UV emission from the star, are reported. Over the course of one year, the prominent emission lines of N V, O V, C IV, and He II appear to be gradually decreasing in absolute intensity. This appears to coincide with a steady decline in electron density in the emission line forming region. The data are consistent with a sudden ejection event in which material expelled from the surface of a hot subdwarf has exposed the underlying UV continuum of the star. A number of strong emission lines that are photoexcited by the intense radiation field of the secondary also exhibit broad pedestal emission that suggests turbulent velocities of about 150-300 km/s in an expanding shell or possibly in an accretion disk.
    Keywords: ASTROPHYSICS
    Type: Royal Astronomical Society, Monthly Notices (ISSN 0035-8711); 207; 575-583
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  • 62
    Publication Date: 2011-08-18
    Description: Abell 30 has been identified as a planetary nebula in which the nucleus has experienced a final helium shell flash after ejection of the original, outer envelope. Around the central star of the nebula, four knots of material are observed. In view of the importance of the chemical composition of the ejected material for studies of advanced stages of stellar evolution, clarification of the physical conditions in the knots is vital. Data obtained of Abell 30 with the aid of the International Ultraviolet Explorer (IUE) satellite are discussed along with aspects of extinction, the He II flux, ionic abundances, the C II lambda 4267 line, questions regarding the existence of a carbon-rich core in the knot, the heating of the nebular gas, the central star, and heating by suprathermal particles from the stellar wind. The UV spectrum of the inner nebulosity of Abell 30 indicates that an extraordinary amount of energy is being deposited in the gas.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 277; 716-724
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  • 63
    Publication Date: 2011-08-18
    Description: 10-micron spectra of many extreme carbon stars reveal a prominent emission feature near 11 microns. This is compared with laboratory spectra of SiC grains. Two distinct types of features are found, perhaps indicative of different mechanisms of grain formation in different stars. Estimates are made of probable column densities and total masses of SiC in the circumstellar shells.
    Keywords: ASTROPHYSICS
    Type: Royal Astronomical Society, Monthly Notices (ISSN 0035-8711); 206; 137-147
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  • 64
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    Publication Date: 2011-08-19
    Description: The magnetic field measurements from Voyager and the magnetohydrodynamic (MHD) processes in the outer heliosphere are reviewed. A bibliography of the experimental and theoretical work concerning magnetic fields and plasmas observed in the outer heliosphere is given. Emphasis in this review is on basic concepts and dynamical processes involving the magnetic field. The theory that serves to explain and unify the interplanetary magnetic field and plasma observations is magnetohydrodynamics. Basic physical processes and observations that relate directly to solutions of the MHD equations are emphasized, but obtaining solutions of this complex system of equations involves various assumptions and approximations. The spatial and temporal complexity of the outer heliosphere and some approaches for dealing with this complexity are discussed.
    Keywords: ASTROPHYSICS
    Type: Space Science Reviews (ISSN 0038-6308); 39; 255-316
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  • 65
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    Publication Date: 2011-08-19
    Description: A theory of the origin and evolution of the Solar System which considered electromagnetic forces and plasma effects is revised in light of information supplied by space research. In situ measurements in the magnetospheres and solar wind can be extrapolated outwards in space, to interstellar clouds, and backwards in time, to the formation of the solar system. The first extrapolation leads to a revision of cloud properties essential for the early phases in the formation of stars and solar nebulae. The latter extrapolation facilitates analysis of the cosmogonic processes by extrapolation of magnetospheric phenomena. Pioneer-Voyager observations of the Saturnian rings indicate that essential parts of their structure are fossils from cosmogonic times. By using detailed information from these space missions, it is possible to reconstruct events 4 to 5 billion years ago with an accuracy of a few percent.
    Keywords: ASTROPHYSICS
    Type: Space Science Reviews (ISSN 0038-6308); 39; 65-90
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  • 66
    Publication Date: 2011-08-19
    Description: Measurements of the ARII (6.99 microns), ArIII (8.99 microns), NeI (12.81 microns), SIII (18.71 microns), and SIV (10.51 microns) lines are presented for five compact HII regions along with continuum spectroscopy. From these data and radio data, lower limits to the elemental abundances of Ar, S, and Ne were deduced. The complex G25.4-0.2 is only 5.5 kpc from the galactic center, and is considerably overabundant in all these elements. Complex G45.5+0.06 is at seven kpc from the galactic center, and appears to be approximately consistent with solar abundance. The complex S159 in the Perseus Arm, at 12 kpc from the galactic center, has solar abundance, while M8 in the solar neighborhood may be somewhat overabundant in Ar and Ne. Complex DR 22, at 10 kpc from the galactic center in the Cygnus Arm, is overabundant in Ar. A summary of results from a series of papers on abundances is given.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 285; 174-180
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  • 67
    Publication Date: 2011-08-19
    Description: The HEAO A-1 Sky Survey Experiment included X-ray data used to define light curves for the flare star EV Lac and for X-ray flares observed in the binary system HD 8357. The data were taken during flare events and were detailed enough to calculate the flare rates and flaring luminosities. The peak luminosities during flares were several times the luminosities in normal X-ray flares emitted by the objects. Peak luminosities reached 30-50 times the normal variations and were associated with an order of magnitude increase in energy output. EV Lac was sufficiently active to be recommended for inclusion in future X-ray monitoring programs.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 284; 270-277
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  • 68
    Publication Date: 2011-08-19
    Description: The results of regularized Monte Carlo calculations of the optical polarization Stokes parameters expected as a result of scattering from gas streams or accretion wakes in close binary systems whose properties resemble those of X-ray binaries are presented. The physical processes occurring in the system are represented by a model which follows a selected sample of individual photon paths from each emitting element on the surface of the primary to the photon's detection at earth. The result represents the variations in the intensity from each individual emitting element caused by the effects of limb darkening, gravity darkening, and variation in the projected area of the emitting element as seen from the scattering element.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 138; 1, Se
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  • 69
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    Publication Date: 2011-08-19
    Description: The existing data base on certain characteristics of the periodic Comet Kopff, a candidate for a NASA rendezvous mission in the 1990s, is summarized. The comet was discovered in 1906. The data are used to calculate limits to the nuclear mass (0.7-1.5 x 10 to the 16th g), equatorial radius (1.26-1.64 km), and a geometric albedo of 0.08. An equatorial rotation velocity of 8.1-10.7 hr is projected. The estimates are highly dependent on the present photometric data, which in turn depend on the insolation rate, which if different than assumed could mean that all parameters would be revised upward significantly.
    Keywords: ASTROPHYSICS
    Type: Astronomical Journal (ISSN 0004-6256); 89; 1573-158
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  • 70
    Publication Date: 2011-08-19
    Description: For galactic N and late R type irregularly variable carbon stars, a comparison is made of airborne infrared spectrophotometry to spectral flux distributions derived from model atmospheres. Although the agreement is good in several respects, the H(-) emission peak at 1.6 microns, so prominent in the models, is significantly weakened in the stellar spectrophotometry. It seems unlikely that molecular bands in the stars can completely obliterate this peak. A plausible explanation is that hydrogen is deficient in these stars, most probably from an episode of mass loss. The resultant cold shells surrounding these stars should be amenable to observation by IRAS, or other far-infrared observatories.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 284; L39-L42
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  • 71
    Publication Date: 2011-08-19
    Description: A sample consisting primarily of radio bright quasars was observed in X-rays with the Einstein Observatory for times ranging from 1500 to 5000 seconds. Detected sources had luminosities ranging from 0.2 to 41.0 x 10 to the 45th power ergs/sec in the 0.5 to 4.5 keV band. Three of the fourteen objects which were reobserved showed flux increases greater than a factor of two on a time scale greater than six months. No variability was detected during the individual observations. The optical and X-ray luminosities are correlated, which suggests a common origin. However, the relationship (L sub x is approximately L sub op to the (.89 + or - .15) found for historic radio variables may be significantly different than that reported for other radio bright sources. Some of the observed X-ray fluxes were substantially below the predicted self-Compton flux, assuming incoherent synchrotron emission and using VLBI results to constrain the size of the emission region, which suggests relativistic expansion in these sources. Normal CIV emission in two of the sources with an overpredicted Compton component suggests that although they, like BL Lac objects, have highly relativistic material apparently moving at small angle to the line of sight, they have a smaller fraction of the continuum component in the beam.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 284; 491-496
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  • 72
    Publication Date: 2011-08-19
    Description: High resolution spectra of the interstellar NaI D2 absorption line have been obtained for seven B-type stars aligned with an extensive filamentary nebula. Very fine filaments have now been found on a high contrast print of a deep H-alpha and forbidden N II plate, making identification as a fossilized remnant probable but uncertain. The inferred age is about 20,000 yr, the distance less than 200 pc, the diameter less than 17.5 pec, but the initial energy is only about 2 x 10 to the 47th erg.
    Keywords: ASTROPHYSICS
    Type: Royal Astronomical Society, Monthly Notices (ISSN 0035-8711); 210; 693-699
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  • 73
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    Publication Date: 2011-08-18
    Description: The destruction of interstellar grains by nonthermal sputtering, thermal sputtering, and grain-grain collisions is discussed. It is concluded that large grains are easily destroyed by shocks in the interstellar medium, but that small grains are much more persistent. Since the MRN model has many more small grains than large ones, this means that the total number of grains is not significantly reduced even when half or more of the grain material is returned to the gas phase. Thus, the small grains are always available as condensation cores for mantle formation or redepletion of refractory grain materials.
    Keywords: ASTROPHYSICS
    Type: Royal Observatory Lab. and Observational Infrared Spectra of Interstellar Dust; p 26-32
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  • 74
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    Publication Date: 2011-08-19
    Description: The comet thermal model of Weissman and Kieffer is used to calculate gas production rates and other parameters for the 1986 perihelion passages of Halley's Comet. Gas production estimates are very close to revised pre-perihelion estimates by Newburn based on 1910 observations of Halley; the increase in observed gas production post-perihelion may be explained by a variety of factors. The energy contribution from multiply scattered sunlight and thermal emission by coma dust increases the total energy reaching the Halley nucleus at perihelion by a factor of 2.4. The high obliquity of the Halley nucleus found by Sekanina and Larson may help to explain the asymmetry in Halley's gas production rates around perihelion.
    Keywords: ASTROPHYSICS
    Type: Advances in Space Research (ISSN 0273-1177); 4; 9, 19; 221-224
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  • 75
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    Publication Date: 2011-08-19
    Description: It is pointed out that solid material present in the coma and tail of a comet is revealed by the scattering of sunlight and thermal emission of absorbed solar radiation. The large beam size and low background of the cold Infrared Astronomy Satellite (IRAS) telescope make it extremely well suited to the measurement of faint diffuse thermal emission from solid grains associated with comets. The IRAS project was conducted jointly by the Netherlands, the United Kingdom, and the U.S. Its basic objective involved a survey of the sky in four wavelength regions centered on 12, 25, 60, and 100 microns. The present paper is mainly concerned with IRAS observations of the coma-nucleus regions as defined by the maximum in the intensity distribution. Attention is given to circumstances of comet observations, dust production rates, and a discussion of the results.
    Keywords: ASTROPHYSICS
    Type: Advances in Space Research (ISSN 0273-1177); 4; 9, 19
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  • 76
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    Publication Date: 2011-08-19
    Description: Measurements of the thermal emission from the cometary dust coma can be used to derive the rate of dust production from the nucleus as well as the size distribution of absorbing grains. More than ten short-period comets have now been observed in the infrared over a wide range in heliocentric distance. Dust production rates are derived for these comets based on theoretical models of the thermal emission from small absorbing grains and calculations of dust grain velocities. The mean size and albedo of the dust grains is similar in these comets, with the exception of Comet Crommelin, which seems to have had larger, darker grains.
    Keywords: ASTROPHYSICS
    Type: Advances in Space Research (ISSN 0273-1177); 4; 9, 19; 189-196
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  • 77
    Publication Date: 2011-08-19
    Description: The semiempirical photometric theory of gas and dust production in comets (Newburn, 1979, 1981, and 1982) is recalibrated on the basis of the 17-comet compilation of spectrophotometric data of Newburn and Spinrad (1984). The results are presented in graphs and tables, and it is shown that no corrections are required for the constant R and the function delta, but that the mixing ratios (obtained as functions of heliocentric distance) can be improved, with implications for the visual-photometric comet model. Recently calculated light curves for comet Halley are compared, and the use of the nearly identical curves of Bortle and Morris (1984) and Marcus (1983) is recommended.
    Keywords: ASTROPHYSICS
    Type: Advances in Space Research (ISSN 0273-1177); 4; 9, 19; 185-188
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  • 78
    Publication Date: 2011-08-19
    Description: Expected enhancement of the N III emission-line spectrum by the Bowen He II to O III to N III resonant photoexcitation process is computed using a six-configuration model. Preliminary comparisons with available solar and nebular observations indicate that the process may play only a small role, although photoexcitation quenching of the N III and O III far-infrared fine-structure lines is noted as a possibly important mechanism. Some features are discussed in connection with the nebular emission at 1750 A, which is suggested as an indicator of excitation class for planetary nebulae.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 287; 945-951
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  • 79
    Publication Date: 2011-08-19
    Description: Ariel 5 and SAS 3 X-ray pulse timing data for the 700 s X-ray pulsar 4U 1223 - 62 (GX 301 - 2) are reexamined in order to deduce the orbital elements of this system. The Ariel 5/SAS 3 arrival times are first reanalyzed to obtain the best solution for an orbital period close to 41.5 days and to estimate the uncertainties in it caused by unknown variations in the underlying pulse period. Spectral measurements by OSO 8 and HEAO 1 at a variety of orbital phases are presented and the origin of an unabsorbed, unpulsed soft component is discussed. OSO 8 observations of occasions when the amplitude and shape of the pulse profile changed dramatically are discussed. The global X-ray properties of the system are explained in terms of a simple stellar wind accretion model, and the interaction of the inflowing material with the neutron star magnetosphere is considered.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 287; 856-867
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  • 80
    Publication Date: 2011-08-19
    Description: The present investigation is concerned with a comparison of the spectra of four O stars (10 Lac, S Mon, HD 46223, and Zeta Pup) which have similar effective temperatures, taking into account an attempt to find the reason for differences regarding the spectral type of the stars. The photospheres of the stars are examined, taking into account the effective temperatures, radii, speed of rotation, and masses. Information is presented about the equivalent widths and profiles of strong lines in the visible and ultraviolet spectra of each star. It is found that the four stars have similar photospheres but different mantles. The stars are assigned different spectral types because the empirically selected lines used for determining spectral type in class O are sensitive primarily to conditions in the mantle of the star and not to conditions in the photosphere. Questions concerning the reasons for the differences regarding the mantles are also explored.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 287; 874-891
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  • 81
    Publication Date: 2011-08-19
    Description: High signal-to-noise ratio spectra in the range of 5-8 microns of four sources embedded in molecular clouds are examined using low-temperature laboratory measurements of the 5-8-micron spectra of simple molecules and their mixtures. The absorption, apparent in all four sources, is characterized by highly distinct features ranging from two relatively narrow bands at 6.0 and 6.8 microns in W33A to a broad, shallow, and partially structured feature extending from 5.2 to 7.8 microns in Mon R2-IRS2, BN, and NGC2264. The first feature (W33A) is explained by the OH bending mode in H2O and the CH deformation modes in saturated hydrocarbons; while the second feature (Mon R2-IRS2-type) is explained by the presence of a mixture of saturated and unsaturated hydrocarbons possibly containing strongly electronegative groups.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 287; 697-706
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  • 82
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    Publication Date: 2011-08-19
    Description: Absorption of high-energy gamma-rays from Cyg X-3 in its own photon field by the reaction gamma + gamma yields e(+) + e(-) is considered. It is found that gamma rays with an energy around 10 to the 12th eV are attenuated, and the observed flux has to be corrected. Gamma rays with energy greater than 10 to the 15th eV which are observed are not affected by the photon field.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 287; 338-340
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  • 83
    Publication Date: 2011-08-19
    Description: The results of Monte Carlo simulations of steady state shocks generated by a collision operator that isotropizes the particles by means of elastic scattering in some locally defined frame of reference are presented. The simulations include both the back reaction of accelerated particles on the inflowing plasma and the free escape of high-energy particles from finite shocks. Energetic particles are found to be naturally extracted out of the background plasma by the shock process with an efficiency in good quantitative agreement with an earlier analytic approximation (Eichler, 1983 and 1984) and observations (Gosling et al., 1981) of the entire particle spectrum at a quasi-parallel interplanetary shock. The analytic approximation, which allows a self-consistent determination of the effective adiabatic index of the shocked gas, is used to calculate the overall acceleration efficiency and particle spectrum for cases where ultrarelativistic energies are obtained. It is found that shocks of the strength necessary to produce galactic cosmic rays put approximately 15 percent of the shock energy into relativistic particles.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 286; 691-701
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  • 84
    Publication Date: 2011-08-19
    Description: A generalized model which accounts for the effects of initially uniform and slow rotation is defined for the spherical collapse of a singular isothermal sphere such as protosolar and binary nebulae. An initial unstable equilibrium state is described for a sound speed of 0.35 km/sec and a rotation rate of 10 to the -14th/sec for the molecular cloud surrounding the accreting core. The total angular momentum and mass of the inner cloud is set equal to solar system values. The evolution of the collapse is traced by applying a perturbation analysis to the similarity solution for a nonrotating condition, and matched asymptotic expansions solve the hydrodynamic equations. The model is concluded a valid tool for studying star and nebular disk formation.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 286; 529-551
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  • 85
    Publication Date: 2011-08-19
    Description: The balloon-borne UV Stellar Spectrometer's high resolution, near-UV spectra of the supergiant Alpha Cyg are subjected to analysis in order to determine the average microturbulent line-of-sight velocity component. A value of 15.0 + or - 0.5 km/sec is obtained, which is close to the 13.7 km/sec local sound velocity, and is consistent with the view that shock waves are the dominant structure in the outer photosphere of Deneb, so that shock wave dissipation determines the thermal structure of the photosphere.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 141; 2, De
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  • 86
    Publication Date: 2011-08-19
    Description: Ultraviolet observations of atomic carbon in cometary comae show that carbon-bearing compounds must comprise a significant fraction (approximately equal to or greater than 10 percent) of the volatiles. One likely source is CO. This compound is an important constituent of at least some cometary nuclei, even though it may not be the ultimate source of atomic carbon in all comets. Feldman (1983) has suggested that the relative abundance of CO may be one of the few fundamental characteristics which distinguish one comet from another. The present investigation is, therefore, concerned with the vibrational and rotational excitation of the CO molecule in cometary comae. Two previously neglected factors are taken into account in the study. The fractional populations of CO as solutions to time-dependent differential equations are derived, and a nonisothermal and cold kinetic temperature profile for the inner coma is considered.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 285; 858-869
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  • 87
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    Publication Date: 2011-08-19
    Description: Four early-type supergiants - HD 79186 (B5 Ia), HD 96919 (B9 Ia), HD 105056 (ON9.7 Iae), and HD 148379 (B2 Iae) - have been observed with the low-resolution spectrographs of IUE in the large aperture on 14 days. The behavior of the ultraviolet fluxes with time is studied. The light from all four stars seems to vary. Typically the dispersion about the mean magnitude at any wavelength corresponds to + or - 0.085, + or - 0.080, + or - 0.101, and + or - 0.106 mag, respectively. These amplitudes exceed the typical uncertainty in an IUE measurement of flux by about a factor of 3; they are somewhat larger than the variations known in the visible wavelength range. There are insufficient data to investigate periodicity in the observed light changes. The effective temperatures and angular diameters of the stars have been estimated using the present ultraviolet photometry, published UBV and uvby photometry, and the model-atmosphere fluxes reported by Kurucz in 1979. The program stars have dimensions typical for their spectral types. A brief discussion is given of possible causes of the variability of hot supergiants.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 285; 668-673
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  • 88
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    Publication Date: 2011-08-19
    Description: A modified form of the Lepping-Argentiero single spacecraft, shock normal determination procedure is presented. The modified method incorporates a simple predictor-corrector algorithm which allows a faster convergence rate and the use of average values of the parameters for the starting vector.
    Keywords: ASTROPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 89; 11004-11
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  • 89
    Publication Date: 2011-08-19
    Description: The large-scale radial and temporal variations of the interplanetary magnetic field strength B observed by Voyagers 1 and 2 are discussed. Two components of the magnetic field strength were considered: (1) an average component, B sub zero, based on solar rotation averages, and (2) a fluctuation component, delta B, expressed by 10- or 24-hour averages of B normalized by the best-fit average field for the corresponding time and distance. Observations of the sector structure, interfaces, and shocks are presented to further describe magnetic field strength.
    Keywords: ASTROPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 89; 10659-10
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  • 90
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    Publication Date: 2011-08-19
    Description: Cyclotron emission in the inner regions of an accretion disk around a matter accreting black hole can be appreciable. In the case of the X-ray source Cyg X-1, cyclotron emission may provide the soft photons needed for 'Comptonization' to produce high energy X-rays. The inverse correlation between the fluxes of high energy and low energy X-rays during the 'high' and 'low' states of Cyg X-1, may be understood as a result of the variation of the rate of accretion and the Compton scattering of the cyclotron photons. In the case of the X-ray source GX 339-4, the observed optical flux during the high states does not seem to be due to cyclotron emission, but probably due to reprocessing of high energy X-rays by the outer regions of the disk.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 139; 2, Oc
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  • 91
    Publication Date: 2011-08-19
    Description: Observational results are presented from a new large-scale survey of the first quadrant of the galactic plane at wavelengths of 150, 250, and 300 microns, with a 10 x 10 arcmin beam. The emission detected in the survey arises from compact sources, most of which are identified with known peaks of 5 GHz or CO emission, or both, and from an underlying diffuse background with a typical angular width of about 0.9 deg (FWHM) which accounts for most of the emission. A total of 80 prominent discrete sources are identified and characterized, of which about half have not previously been reported at far-infrared wavelengths. The total infrared luminosity within the solar circle is about 1 to 2 x 10 to the 10th solar luminosity, and is probably emitted by dust that resides in molecular clouds.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 285; 74-88
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  • 92
    Publication Date: 2011-08-19
    Description: The profile of the forbidden line of C III (1909) is the same in two pseudo-trailed, low-resolution SWP spectra of the nucleus of the Seyfert galaxy NGC 4151 obtained with the IUE in November 1980 and December 1982, respectively. In the 1980 spectrum, the C III forbidden line profile is also very nearly the same as that of the resonance line C IV (1550). In the 1982 spectrum, the continuum is 5 times higher and C IV is both much broader and much brighter. In the difference spectrum, which is interpreted to be the spectrum of a time-variable component, C IV (1550) is the only strong emission feature. The profile of this line closely resembles that of a spherical shell surrounding a less dense gas uniformly expanding from a central opaque object. From values of the profile parameters and from the observed time variability of the object, it is inferred that the shell has a radius of about 10 to the 15th cm, a mass of 0.25 solar mass, an expansion velocity of 13,000 km/s, and an electron density of 10 to the 11th per cu cm. From the line profile and the continuum, it is inferred that the opaque central source has approximate radius of 10 to the 14th cm and temperature 23,000 K.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 285; 69-73
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  • 93
    Publication Date: 2011-08-19
    Description: A comparison of COS-B gamma-ray observations of the large complex of interstellar clouds in Orion and Monoceros with the Columbia CO and Berkeley H I surveys of this region reveals a good correlation between gamma-ray emission and total gas distribution. The observed gamma-ray emission is explainable in terms of interactions of cosmic rays that are uniformly distributed in this region with the interstellar gas. The correlation is used as the basis of a calibration of the ratio between H2 column density and the integrated CO line intensity; the value of (2.6 + or - 1.2) X 10 to the 20th mol/sq cm K km s thereby obtained is consistent with the value derived from a similar analysis for the inner galaxy.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics (ISSN 0004-6361); 139; 1, Oc
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  • 94
    Publication Date: 2011-08-19
    Description: An algorithm is presented for the automatic reduction to the SAO Star Catalog of old micrometer cometary observations of the type comet minus star. Results of a numerical test are presented showing the distinct influence of such a reduction on orbit determination results.
    Keywords: ASTROPHYSICS
    Type: JPL Cometary Astrometry; p 203-206
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  • 95
    Publication Date: 2011-08-18
    Description: A review was carried out of ISEE and Voyager spacecraft magnetometer data to determine if quasi-parallel bow shocks are really broad, disordered regions. The key parameter was the deceleration scale (thickness, Lp) across which random energy would need to increase and a localized electrostatic field (E) would be present. Lp would define the breadth of the shock and be associated with a plasma deceleration. The ISEE 1 satellite collected data on the electron density, bulk speed, magnetic intensity, and electron temperature in November 1977 during five traverses of the bow shock. Similar data were gathered from an interplanetary shock wave in 1981. The evidence supported the concept of a plasma deceleration across a thin layer (Lp) in both types of shocks. The layers were about 50 times (interplanetary) and 20 times (earth) thinner than surrounding magnetic fluctuation regions. It is asserted that the regions of deceleration, although much thinner, are the actual shocks and not the entire regions of magnetic fluctuations.
    Keywords: ASTROPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 89; 7545-755
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  • 96
    Publication Date: 2011-08-18
    Description: In the radio spectrum of the envelope of the evolved carbon star IRC +10216, the fraction of lines from exotic molecules seldom or never observed in the terrestrial laboratory is exceptionally high. At least 20 lines have not been identified, and it is not known whether one, two, or a number of new molecules are involved. It is shown in the present investigation that nine of the previously unidentified lines in IRC +10216 are produced by SiCC, a radical long known to exist in stellar atmospheres. The true ground-state geometry of this radical has only been obtained recently on the basis of an elegant two-photon ionization experiment in a supersonic molecular beam. Information regarding the molecular geometry and lower rotational levels of SiCC is presented in a graph. The intensities of the SiCC lines confirm the assignments, yield new data on the temperature and density in the envelope of IRC +10216, and indicate that the amount of SiCC there is substantial.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 283; L45-L48
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  • 97
    Publication Date: 2011-08-18
    Description: Medium resolution (11 min) maps of the galactic plane are presented from l = 11.5 deg to l = 17.5 deg at wavelengths of 93 microns, 154 microns, and 190 microns. The maps are interpreted in terms of the temperature and spatial structure of diffuse far-infrared/submillimeter sources associated with evolved H II regions and a continuous ridge of galactic emission. The emission regions are found to be more extended at the longer wavelengths which implies that there must be a range of dust temperatures in the sources. The properties of the galactic ridge are similar to those of the sources.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 283; 566-572
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  • 98
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    In:  Other Sources
    Publication Date: 2011-08-18
    Description: The possible influence of 'invisible matter' on the solar system's comet halo, and therefore on quasi-periodic cometary bombardment of the earth and consequent mass extinctions, is briefly addressed. Invisible matter consisting of small or cold interstellar molecular clouds could significantly modulate the comet background flux, while invisible matter consisting of a large population of old, dead stars with a relatively small galactic concentration probably could not. It is also shown that the downward force exerted by the Galaxy will perturb the halo, but will not produce any periodicity.
    Keywords: ASTROPHYSICS
    Type: Nature (ISSN 0028-0836); 311; 17
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  • 99
    Publication Date: 2011-08-18
    Description: IRAS observations of the peculiar galaxy Arp 220 = IC 4553 show that it is extremely luminous in the far-infrared, with a total luminosity of 2 x 10 to the 12th solar luminosities. The infrared-to-blue luminosity ratio of this galaxy is about 80, which is the largest value of the ratio for galaxies in the UGC catalog, and places it in the range of the 'unidentified' infrared sources recently reported by Houck et al. in the IRAS all-sky survey. Other observations of Arp 220, combined with the luminosity in the infrared, allow either a Seyfert-like or starburst origin for this luminosity.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 283; L1-L4
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  • 100
    Publication Date: 2011-08-18
    Description: Observations of the 3(13)-2(20) transition of water vapor in the direction of Ori MC1 in 1980 February show a 50 percent flux increase and an apparent additional red shift of approximately 2 km/s relative to the line observed in 1977 December. From a detailed examination of the amplitude and frequency calibration, it appears unlikely that the effect is due to systematic error. The increase is attributed to the appearance of a new component at a velocity of 12 km/s with respect to the local standard of rest. The new component also has broad wings. Increased emission from a region in the high-velocity core of Ori MC1 can be due either to additional far-IR radiation to pump the 1983 GHz transition or to a change in the physical conditions in the gas. Statistical equilibrium calculations using the large-velocity-gradient formalism were carried out to develop a model for the emission. The calculations support a model in which the gas in the region of enhanced emission is hotter than the dust. The temporal coincidence between the 183 GHz increase and the 22 GH1 water maser outburst suggests a common, impulsive cause, which has heated the gas in a part of the HV source, enhancing the emission in both transitions.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 283; 106-116
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