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  • 1970-1974  (25)
  • 11
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    Evidence for an optically thick component in the galactic radio source Sagittarius B2 (1971)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Galactic radio source Sagittarius optically thick component evidence based on flux density measurement
    Keywords: SPACE SCIENCES
    Type: ; TROPHYSICAL JOURNAL
    Format: text
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  • 12
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    1.0 arc second structure on the sun at 3.71 cm wavelength (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Keywords: SPACE RADIATION
    Type: Solar Physics; 36; June 197
    Format: text
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  • 13
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    Astronomical demonstration of an infrared upconverter (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: An upconverter has been used to convert infrared photons from astronomical sources to higher frequency quanta that were detected with a pulse-counting photomultiplier photometer. It is pointed out that these observations represent the first successful astronomical demonstration of infrared upconversion. Upconversion is carried out in an optically nonlinear medium, which in the upconverter described is a lithium iodate crystal. A 0.6943-micrometer high peak power ruby laser pump was developed for the demonstration.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Nature; 249; June 14
    Format: text
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  • 14
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    New theory for giant loops. (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Four very large, shell-shaped features are known from the surveys of radio emission from the Galaxy. It is suggested that the giant loops represent a class of nebulae, induced by supernova radiation as opposed to supernova ejecta. The model considered provides a qualitative explanation for the spectral and polarization properties of the radio emission from giant loops. The radio emitting electrons are part of the general cosmic ray gas and need not arise specifically in the supernova that produced the fossil Stroemgren sphere.
    Keywords: SPACE SCIENCES
    Type: Nature; 235; Jan. 7
    Format: text
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  • 15
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    An emission-line object found in the Orion nebula (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: A small, low-temperature, high-density object has been found superimposed upon the Orion nebula. The observed spectrum suggests it is a Herbig-Haro object.
    Keywords: SPACE SCIENCES
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  • 16
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    The electronic pulsarium (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Electronic pulsarium displaying flashing or beeping properties of pulsars
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; STITUTION OF ENGINEE
    Format: text
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  • 17
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    The OSO-7 year of discovery. (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The OSO 7 scientific findings reveal hitherto unknown processes in solar flares and some remarkable properties of the corona. Gamma-ray emission lines provide evidence of nuclear reactions in solar flares. The measurements were made during the large flares of Aug. 4 and 7, 1972. The data clearly show line emission at energies of about 0.5 MeV (million electron volts) and 2.2 MeV, with weaker enhancements at 4.4 MeV and 6.1 MeV. It appears that the nuclear processes in flares as revealed by OSO 7 are probably thermal reactions. Some flare electron streams also produce bursts of hard X rays. Holes and poles in the corona, and coronal streams and the interplanetary blast were studied.
    Keywords: SPACE SCIENCES
    Type: Sky and Telescope; 45; Jan. 197
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  • 18
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    New horizons in astronomy. (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Besides the study of astronomy itself, other topics included cover the geological and biological developments on earth and basic physics of matter, heat, and light. Optical and radio telescopes are discussed, as well as photographic and photoelectric means of detection. The immediate solar system is described by topics on the properties and atmospheres of the inner and outer planets, the sun's energy, sunspots, and the solar spectrum. Stars both on and off the main sequence are discussed in terms of distances, intrinsic properties, lifetimes and evolution. The Milky Way is compared to other galaxies in size, star population and structure, and the different galaxy shapes are pictured. Topics of most recent interest are covered by results of the lunar explorations, new concepts of Mars, and problems of space travel. Problems of modern astronomy include pulsars, neutron stars, and quasars.
    Keywords: SPACE SCIENCES
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  • 19
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    Kohoutek - A great comet coming. (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Passing inside the earth's orbit in late November, the comet Kohoutek will travel through the inner solar system during a unique period in the history of the space program, when Skylab and Mariner Venus-Mercury are in operation and the new C-141 Airborne Infrared Observatory is ready for flight. It is planned to investigate comprehensively the nature and evolution of the coma and tails of the comet. The detailed goals of the investigation include the identification of the parent molecules of the gases observed in comets, the determination of the processes that break down the parent molecules, the study of the physical nature of transient events in the comet, and the measurement of the solar-wind velocity in the inner solar system.
    Keywords: SPACE SCIENCES
    Type: Astronautics and Aeronautics; 11; Oct. 197
    Format: text
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  • 20
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    Giant loops: A new kind of nebula (1972)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Four enormous, loop-shaped features were found in ground-based surveys of the low-frequency galactic radio emission. With diameters of 40 to 116 deg, they include the Cetus Arc and the North Polar Spur and were formerly called the radio spurs.
    Keywords: SPACE SCIENCES
    Type: Significant Accomplishments in Sci., 1971; p 197-200
    Format: application/pdf
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