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Hayabusa2 arrives at the carbonaceous Asteroid 162173 Ryugu - A spinning top-shaped rubble pile

Watanabe, S. and Hirabayashi, M. and Hirata, N. and Hirata, N. and Noguchi, R. and Shimaki, Y. and Ikeda, H. and Tatsumi, E. and Yoshikawa, Makoto and Kikuchi, S. and Yabuta, H. and Nakamura, T. and Tachibana, S. and Ishihara, Y. and Morota, T. and Kitazato, K. and Sakatani, N. and Matsumoto, K. and Wada, Koji and Senshu, H. and Honda, C. and Michikami, T. and Takeuchi, H. and Kouyama, T. and Honda, R. and Kameda, S. and Fuse, T. and Miyamoto, H. and Komatsu, G. and Sugita, S. and Okada, T. and Namiki, N. and Arakawa, M. and Ishiguro, M. and Abe, M. and Gaskell, R. and Palmer, E. and Barnouin, O.S. and Michel, P. and French, A. S.V. and McMahon, J. W. and Scheeres, D. J. and Abell, P. A. and Yamamoto, Y. and Tanaka, S. and Shirai, K. and Matsuoka, M. and Yamada, M. and Yokota, Y. and Suzuki, H. and Yoshioka, K. and Cho, Y. and Tanaka, S. and Nishikawa, N. and Sugiyama, T. and Kikuchi, H. and Hemmi, R. and Yamaguchi, T. and Ogawa, N. and Ono, G. and Mimasu, Y. and Yoshikawa, K. and Takahashi, T. and Takei, Y. and Fujii, A. and Hirose, C. and Iwata, T. and Hayakawa, M. and Hosoda, S. and Mori, O. and Sawada, H. and Shimada, T. and Soldini, S. and Yano, H. and Tsukizaki, R. and Ozaki, M. and Iijima, Y. and Ogawa, K. and Fujimoto, M. and Ho, Tra-Mi and Moussi, Aurelie and Jaumann, R and Bibring, J-.P. and Krause, Christian and Terui, F. and Saiki, T. and Nakazawa, S. and Tsuda, Y. (2019) Hayabusa2 arrives at the carbonaceous Asteroid 162173 Ryugu - A spinning top-shaped rubble pile. Science, 364 (64372), pp. 268-272. American Association for the Advancement of Science (AAAS). DOI: 10.1126/science.aav8032 ISSN 0036-8075

Full text not available from this repository.

Official URL: https://science.sciencemag.org/content/364/6437/268

Abstract

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.

Item URL in elib:https://elib.dlr.de/128400/
Document Type:Article
Title:Hayabusa2 arrives at the carbonaceous Asteroid 162173 Ryugu - A spinning top-shaped rubble pile
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Watanabe, S.ISAS, JapanUNSPECIFIED
Hirabayashi, M.Auburn University, Auburn, AL 36849, USAUNSPECIFIED
Hirata, N.Univ Aizu, Res Ctr Adv Informat Sci & Technol, Aizu Wakamatsu, Fukushima, JapanUNSPECIFIED
Hirata, N.Kobe University, Kobe 657-8501, JapanUNSPECIFIED
Noguchi, R.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Shimaki, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIED
Ikeda, H.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIED
Tatsumi, E.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIED
Yoshikawa, MakotoInstitute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency, Sagamihara, JapanUNSPECIFIED
Kikuchi, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Yabuta, H.Hiroshima University, Higashi-Hiroshima 739-8526, JapanUNSPECIFIED
Nakamura, T.Tohoku University, Sendai 980-8578, JapanUNSPECIFIED
Tachibana, S.UTokyo Organization for Planetary and Space Science, University of Tokyo, Tokyo, JapanUNSPECIFIED
Ishihara, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIED
Morota, T.Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, JapanUNSPECIFIED
Kitazato, K.CAIST, University of Aizu, Aizuwakamatsu, JapanUNSPECIFIED
Sakatani, N.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) ( 3 - 1 - 1 Yoshinodai, Chuo - Ku, Sagamihara 2 52 - 5210 , JapanUNSPECIFIED
Matsumoto, K.National Astronomical Observatory of JapanUNSPECIFIED
Wada, KojiChiba Institute of TechnologyUNSPECIFIED
Senshu, H.Chiba Institute of Technology, JapanUNSPECIFIED
Honda, C.Univ Aizu, Res Ctr Adv Informat Sci & Technol, Aizu Wakamatsu, Fukushima, JapanUNSPECIFIED
Michikami, T.Kindai University, Higashi-Hiroshima 739-2116, JapanUNSPECIFIED
Takeuchi, H.Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan; SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, JapanUNSPECIFIED
Kouyama, T.National Institute of Advanced Industrial Science and Technology, Tokyo, JapanUNSPECIFIED
Honda, R.Kochi University, JapanUNSPECIFIED
Kameda, S.Rikkyo University, Tokyo 171-8501, JapanUNSPECIFIED
Fuse, T.National Institute of Information and Communications Technology, Kashima 314-8501, JapanUNSPECIFIED
Miyamoto, H.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIED
Komatsu, G.IRSPS, Universita' d'AnnunzioUNSPECIFIED
Sugita, S.University of Tokyo, Tokyo, JapanUNSPECIFIED
Okada, T.ISAS/JAXA & University of TokyoUNSPECIFIED
Namiki, N.National Astronomical Observatory of Japan, Mitaka 181-8588, JapanUNSPECIFIED
Arakawa, M.Kobe University, KobeUNSPECIFIED
Ishiguro, M.Seoul National University, Seoul 08826, KoreaUNSPECIFIED
Abe, M.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Gaskell, R.Planetary Science Institute, Altadena, CAUNSPECIFIED
Palmer, E.Planetary Science Institute, Tucson, AZ, USAUNSPECIFIED
Barnouin, O.S.Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723UNSPECIFIED
Michel, P.Lagrange Laboratory, University of Nice CNRS, FranceUNSPECIFIED
French, A. S.V.University of Colorado, Boulder, CO 80309, USAUNSPECIFIED
McMahon, J. W.University of Colorado, Boulder, CO 80309, USAUNSPECIFIED
Scheeres, D. J.University of Colorado, Boulder, USAUNSPECIFIED
Abell, P. A.NASA Johnson Space Center, Houston, TX 77058, USAUNSPECIFIED
Yamamoto, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Tanaka, S.Institute of Space and Astronautical Science , Japan Aerospace Exploration Agency (ISAS / JAXA) ( 3 - 1 - 1 Yoshinodai, Chuo - Ku, Sa gamihara 2 52 - 5210 , JapanUNSPECIFIED
Shirai, K.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Matsuoka, M.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIED
Yamada, M.Chiba Institute of Technology, JapanUNSPECIFIED
Yokota, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIED
Suzuki, H.Meiji University, Kawasaki 214-8571, JapanUNSPECIFIED
Yoshioka, K.University of Tokyo, JapanUNSPECIFIED
Cho, Y.University of Tokyo, JapanUNSPECIFIED
Tanaka, S.Kobe University, KobeUNSPECIFIED
Nishikawa, N.Kobe University, KobeUNSPECIFIED
Sugiyama, T.University of Aizu, Aizu-Wakamatsu 965-8580, JapanUNSPECIFIED
Kikuchi, H.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIED
Hemmi, R.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIED
Yamaguchi, T.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Ogawa, N.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Ono, G.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIED
Mimasu, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Yoshikawa, K.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIED
Takahashi, T.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Takei, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Fujii, A.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Hirose, C.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIED
Iwata, T.Japan Aerospace Exploration Agency (JAXA), Sagamihara, JapanUNSPECIFIED
Hayakawa, M.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIED
Hosoda, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Mori, O.ISAS/JAXA JapanUNSPECIFIED
Sawada, H.ISAS, JAXA, JapanUNSPECIFIED
Shimada, T.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Soldini, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Yano, H.Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, JapanUNSPECIFIED
Tsukizaki, R.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Ozaki, M.ISAS/JAXA, JapanUNSPECIFIED
Iijima, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIED
Ogawa, K.Kobe University, Kobe 657-8501, JapanUNSPECIFIED
Fujimoto, M.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Chôfu, JapanUNSPECIFIED
Ho, Tra-MiTra-Mi.Ho (at) dlr.deUNSPECIFIED
Moussi, Aureliecnes toulouseUNSPECIFIED
Jaumann, Rralf.jaumann (at) dlr.deUNSPECIFIED
Bibring, J-.P.IAS OrsayUNSPECIFIED
Krause, ChristianChristian.Krause (at) dlr.deUNSPECIFIED
Terui, F.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Saiki, T.ISAS/JAXA JapanUNSPECIFIED
Nakazawa, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Tsuda, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIED
Date:19 April 2019
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:364
DOI :10.1126/science.aav8032
Page Range:pp. 268-272
Publisher:American Association for the Advancement of Science (AAAS)
ISSN:0036-8075
Status:Published
Keywords:Hayabusa2, Asteroid Ryugu
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):Project MASCOT Science and operation
Location: Berlin-Adlershof , Bremen , Köln-Porz
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Institute of Space Systems > Systems Engineering and Project Office
Space Operations and Astronaut Training > User center for space experiments (MUSC)
Deposited By: Herrmann, Astrid
Deposited On:12 Jul 2019 10:45
Last Modified:21 Jan 2020 09:54

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