ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu--A spinning top-shaped rubble pile (2019)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2019
    Description: 〈p〉The Hayabusa2 spacecraft arrived at the near-Earth carbonaceous asteroid 162173 Ryugu in 2018. We present Hayabusa2 observations of Ryugu’s shape, mass, and geomorphology. Ryugu has an oblate ‘spinning top’ shape with a prominent circular equatorial ridge. Its bulk density, 1.19 ± 0.02 g cm〈sup〉–3〈/sup〉, indicates a high porosity (〉50%) interior. Large surface boulders suggest a rubble-pile structure. Surface slope analysis shows Ryugu’s shape may have been produced if it once spun at twice the current rate. Coupled with the observed global material homogeneity, this suggests that Ryugu was reshaped by centrifugally induced deformation during a period of rapid rotation. From these remote-sensing investigations, we identify a suitable sample collection site on the equatorial ridge.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu--A spinning top-shaped rubble pile (2019)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2019
    Description: 〈p〉The Hayabusa2 spacecraft arrived at the near-Earth carbonaceous asteroid 162173 Ryugu in 2018. We present Hayabusa2 observations of Ryugu’s shape, mass, and geomorphology. Ryugu has an oblate "spinning top" shape, with a prominent circular equatorial ridge. Its bulk density, 1.19 ± 0.02 grams per cubic centimeter, indicates a high-porosity (〉50%) interior. Large surface boulders suggest a rubble-pile structure. Surface slope analysis shows Ryugu’s shape may have been produced from having once spun at twice the current rate. Coupled with the observed global material homogeneity, this suggests that Ryugu was reshaped by centrifugally induced deformation during a period of rapid rotation. From these remote-sensing investigations, we identified a suitable sample collection site on the equatorial ridge.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Mass and local topography measurements of Itokawa by Hayabusa (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-06-03
    Description: The ranging instrument aboard the Hayabusa spacecraft measured the surface topography of asteroid 25143 Itokawa and its mass. A typical rough area is similar in roughness to debris located on the interior wall of a large crater on asteroid 433 Eros, which suggests a surface structure on Itokawa similar to crater ejecta on Eros. The mass of Itokawa was estimated as (3.58 +/- 0.18) x 10(10) kilograms, implying a bulk density of (1.95 +/- 0.14) grams per cubic centimeter for a volume of (1.84 +/- 0.09) x 10(7) cubic meters and a bulk porosity of approximately 40%, which is similar to that of angular sands, when assuming an LL (low iron chondritic) meteorite composition. Combined with surface observations, these data indicate that Itokawa is the first subkilometer-sized small asteroid showing a rubble-pile body rather than a solid monolithic asteroid.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abe, Shinsuke -- Mukai, Tadashi -- Hirata, Naru -- Barnouin-Jha, Olivier S -- Cheng, Andrew F -- Demura, Hirohide -- Gaskell, Robert W -- Hashimoto, Tatsuaki -- Hiraoka, Kensuke -- Honda, Takayuki -- Kubota, Takashi -- Matsuoka, Masatoshi -- Mizuno, Takahide -- Nakamura, Ryosuke -- Scheeres, Daniel J -- Yoshikawa, Makoto -- New York, N.Y. -- Science. 2006 Jun 2;312(5778):1344-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate School of Science and Technology, Kobe University, Nada, Kobe 657-8501, Japan. avell@kobe-u.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16741111" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Detailed images of asteroid 25143 Itokawa from Hayabusa (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-06-03
    Description: Rendezvous of the Japanese spacecraft Hayabusa with the near-Earth asteroid 25143 Itokawa took place during the interval September through November 2005. The onboard camera imaged the solid surface of this tiny asteroid (535 meters by 294 meters by 209 meters) with a spatial resolution of 70 centimeters per pixel, revealing diverse surface morphologies. Unlike previously explored asteroids, the surface of Itokawa reveals both rough and smooth terrains. Craters generally show unclear morphologies. Numerous boulders on Itokawa's surface suggest a rubble-pile structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saito, J -- Miyamoto, H -- Nakamura, R -- Ishiguro, M -- Michikami, T -- Nakamura, A M -- Demura, H -- Sasaki, S -- Hirata, N -- Honda, C -- Yamamoto, A -- Yokota, Y -- Fuse, T -- Yoshida, F -- Tholen, D J -- Gaskell, R W -- Hashimoto, T -- Kubota, T -- Higuchi, Y -- Nakamura, T -- Smith, P -- Hiraoka, K -- Honda, T -- Kobayashi, S -- Furuya, M -- Matsumoto, N -- Nemoto, E -- Yukishita, A -- Kitazato, K -- Dermawan, B -- Sogame, A -- Terazono, J -- Shinohara, C -- Akiyama, H -- New York, N.Y. -- Science. 2006 Jun 2;312(5778):1341-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Hayabusa Project Team, Institute of Space and Astronautical Sciences (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan. saitoj@planeta.sci.isas.jaxa.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16741110" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    Regolith migration and sorting on asteroid Itokawa (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-04-21
    Description: High-resolution images of the surface of asteroid Itokawa from the Hayabusa mission reveal it to be covered with unconsolidated millimeter-sized and larger gravels. Locations and morphologic characteristics of this gravel indicate that Itokawa has experienced considerable vibrations, which have triggered global-scale granular processes in its dry, vacuum, microgravity environment. These processes likely include granular convection, landslide-like granular migrations, and particle sorting, resulting in the segregation of the fine gravels into areas of potential lows. Granular processes become major resurfacing processes because of Itokawa's small size, implying that they can occur on other small asteroids should those have regolith.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyamoto, Hideaki -- Yano, Hajime -- Scheeres, Daniel J -- Abe, Shinsuke -- Barnouin-Jha, Olivier -- Cheng, Andrew F -- Demura, Hirohide -- Gaskell, Robert W -- Hirata, Naru -- Ishiguro, Masateru -- Michikami, Tatsuhiro -- Nakamura, Akiko M -- Nakamura, Ryosuke -- Saito, Jun -- Sasaki, Sho -- New York, N.Y. -- Science. 2007 May 18;316(5827):1011-4. Epub 2007 Apr 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Museum Collection Utilization Studies, University Museum, University of Tokyo, Hongo 7-3-1, Bunkyoku, Tokyo 113-0033, Japan. hm@um.u-tokyo.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17446355" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    Earthquake source fault beneath Tokyo (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-07-16
    Description: Devastating earthquakes occur on a megathrust fault that underlies the Tokyo metropolitan region. We identify this fault with use of deep seismic reflection profiling to be the upper surface of the Philippine Sea plate. The depth to the top of this plate, 4 to 26 kilometers, is much shallower than previous estimates based on the distribution of seismicity. This shallower plate geometry changes the location of maximum finite slip of the 1923 Kanto earthquake and will affect estimations of strong ground motion for seismic hazards analysis within the Tokyo region.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sato, Hiroshi -- Hirata, Naoshi -- Koketsu, Kazuki -- Okaya, David -- Abe, Susumu -- Kobayashi, Reiji -- Matsubara, Makoto -- Iwasaki, Takaya -- Ito, Tanio -- Ikawa, Takeshi -- Kawanaka, Taku -- Kasahara, Keiji -- Harder, Steven -- New York, N.Y. -- Science. 2005 Jul 15;309(5733):462-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Earthquake Research Institute (ERI), University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16020734" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    The rubble-pile asteroid Itokawa as observed by Hayabusa (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-06-03
    Description: During the interval from September through early December 2005, the Hayabusa spacecraft was in close proximity to near-Earth asteroid 25143 Itokawa, and a variety of data were taken on its shape, mass, and surface topography as well as its mineralogic and elemental abundances. The asteroid's orthogonal axes are 535, 294, and 209 meters, the mass is 3.51 x 10(10) kilograms, and the estimated bulk density is 1.9 +/- 0.13 grams per cubic centimeter. The correspondence between the smooth areas on the surface (Muses Sea and Sagamihara) and the gravitationally low regions suggests mass movement and an effective resurfacing process by impact jolting. Itokawa is considered to be a rubble-pile body because of its low bulk density, high porosity, boulder-rich appearance, and shape. The existence of very large boulders and pillars suggests an early collisional breakup of a preexisting parent asteroid followed by a re-agglomeration into a rubble-pile object.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fujiwara, A -- Kawaguchi, J -- Yeomans, D K -- Abe, M -- Mukai, T -- Okada, T -- Saito, J -- Yano, H -- Yoshikawa, M -- Scheeres, D J -- Barnouin-Jha, O -- Cheng, A F -- Demura, H -- Gaskell, R W -- Hirata, N -- Ikeda, H -- Kominato, T -- Miyamoto, H -- Nakamura, A M -- Nakamura, R -- Sasaki, S -- Uesugi, K -- New York, N.Y. -- Science. 2006 Jun 2;312(5778):1330-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan. fujiwara@planeta.sci.isas.jaxa.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16741107" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    facet.materialart.
    Unknown
    Pole and global shape of 25143 Itokawa (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-06-03
    Description: The locations of the pole and rotation axis of asteroid 25143 Itokawa were derived from Asteroid Multiband Imaging Camera data on the Hayabusa spacecraft. The retrograde pole orientation had a right ascension of 90.53 degrees and a declination of -66.30 degrees (52000 equinox) or equivalently 128.5 degrees and -89.66 degrees in ecliptic coordinates with a 3.9 degrees margin of error. The surface area is 0.393 square kilometers, the volume is 0.018378 cubic kilometers with a 5% margin of error, and the three axis lengths are 535 meters by 294 meters by 209 meters. The global Itokawa revealed a boomerang-shaped appearance composed of two distinct parts with partly faceted regions and a constricted ring structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Demura, Hirohide -- Kobayashi, Shingo -- Nemoto, Etsuko -- Matsumoto, Naoya -- Furuya, Motohiro -- Yukishita, Akira -- Muranaka, Noboru -- Morita, Hideo -- Shirakawa, Ken -- Maruya, Makoto -- Ohyama, Hiroshi -- Uo, Masashi -- Kubota, Takashi -- Hashimoto, Tatsuaki -- Kawaguchi, Jun'ichiro -- Fujiwara, Akira -- Saito, Jun -- Sasaki, Sho -- Miyamoto, Hideaki -- Hirata, Naru -- New York, N.Y. -- Science. 2006 Jun 2;312(5778):1347-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Computer Software, University of Aizu, Ikki-machi, Aizu-Wakamatsu City, Fukushima 965-8580, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16741112" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 9
    facet.materialart.
    Unknown
    Long-lived volcanism on the lunar farside revealed by SELENE Terrain Camera (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-11-08
    Description: We determined model ages of mare deposits on the farside of the Moon on the basis of the crater frequency distributions in 10-meter-resolution images obtained by the Terrain Camera on SELENE (Selenological and Engineering Explorer) (Kaguya). Most mare volcanism that formed mare deposits on the lunar farside ceased at approximately 3.0 billion years ago, suggesting that mare volcanism on the Moon was markedly reduced globally during this period. However, several mare deposits at various locations on the lunar farside also show a much younger age, clustering at approximately 2.5 billion years ago. These young ages indicate that mare volcanism on the lunar farside lasted longer than was previously considered and may have occurred episodically.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haruyama, Junichi -- Ohtake, Makiko -- Matsunaga, Tsuneo -- Morota, Tomokatsu -- Honda, Chikatoshi -- Yokota, Yasuhiro -- Abe, Masanao -- Ogawa, Yoshiko -- Miyamoto, Hideaki -- Iwasaki, Akira -- Pieters, Carle M -- Asada, Noriaki -- Demura, Hirohide -- Hirata, Naru -- Terazono, Junya -- Sasaki, Sho -- Saiki, Kazuto -- Yamaji, Atsushi -- Torii, Masaya -- Josset, Jean-Luc -- New York, N.Y. -- Science. 2009 Feb 13;323(5916):905-8. doi: 10.1126/science.1163382. Epub 2008 Nov 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshino-dai, Sagamihara, Kanagawa 229-8510, Japan. haruyama.junichi@jaxa.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18988811" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Propagation of slow slip leading up to the 2011 M(w) 9.0 Tohoku-Oki earthquake (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-24
    Description: Many large earthquakes are preceded by one or more foreshocks, but it is unclear how these foreshocks relate to the nucleation process of the mainshock. On the basis of an earthquake catalog created using a waveform correlation technique, we identified two distinct sequences of foreshocks migrating at rates of 2 to 10 kilometers per day along the trench axis toward the epicenter of the 2011 moment magnitude (M(w)) 9.0 Tohoku-Oki earthquake in Japan. The time history of quasi-static slip along the plate interface, based on small repeating earthquakes that were part of the migrating seismicity, suggests that two sequences involved slow-slip transients propagating toward the initial rupture point. The second sequence, which involved large slip rates, may have caused substantial stress loading, prompting the unstable dynamic rupture of the mainshock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kato, Aitaro -- Obara, Kazushige -- Igarashi, Toshihiro -- Tsuruoka, Hiroshi -- Nakagawa, Shigeki -- Hirata, Naoshi -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):705-8. doi: 10.1126/science.1215141. Epub 2012 Jan 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Earthquake Research Institute, The University of Tokyo, Tokyo, Japan. akato@eri.u-tokyo.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267578" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...