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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 AuthorsAuthor's ORCID iDORCID Put Code
Watanabe, S.ISAS, JapanUNSPECIFIEDUNSPECIFIED
Hirabayashi, M.Auburn University, Auburn, AL 36849, USAUNSPECIFIEDUNSPECIFIED
Hirata, N.Univ Aizu, Res Ctr Adv Informat Sci & Technol, Aizu Wakamatsu, Fukushima, JapanUNSPECIFIEDUNSPECIFIED
Hirata, N.Kobe University, Kobe 657-8501, JapanUNSPECIFIEDUNSPECIFIED
Noguchi, R.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Shimaki, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Ikeda, H.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Tatsumi, E.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIEDUNSPECIFIED
Yoshikawa, MakotoInstitute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency, Sagamihara, JapanUNSPECIFIEDUNSPECIFIED
Kikuchi, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Yabuta, H.Hiroshima University, Higashi-Hiroshima 739-8526, JapanUNSPECIFIEDUNSPECIFIED
Nakamura, T.Tohoku University, Sendai 980-8578, JapanUNSPECIFIEDUNSPECIFIED
Tachibana, S.UTokyo Organization for Planetary and Space Science, University of Tokyo, Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Ishihara, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Morota, T.Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, JapanUNSPECIFIEDUNSPECIFIED
Kitazato, K.CAIST, University of Aizu, Aizuwakamatsu, JapanUNSPECIFIEDUNSPECIFIED
Sakatani, N.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) ( 3 - 1 - 1 Yoshinodai, Chuo - Ku, Sagamihara 2 52 - 5210 , JapanUNSPECIFIEDUNSPECIFIED
Matsumoto, K.National Astronomical Observatory of JapanUNSPECIFIEDUNSPECIFIED
Wada, KojiChiba Institute of TechnologyUNSPECIFIEDUNSPECIFIED
Senshu, H.Chiba Institute of Technology, JapanUNSPECIFIEDUNSPECIFIED
Honda, C.Univ Aizu, Res Ctr Adv Informat Sci & Technol, Aizu Wakamatsu, Fukushima, JapanUNSPECIFIEDUNSPECIFIED
Michikami, T.Kindai University, Higashi-Hiroshima 739-2116, JapanUNSPECIFIEDUNSPECIFIED
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, JapanUNSPECIFIEDUNSPECIFIED
Kouyama, T.National Institute of Advanced Industrial Science and Technology, Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Honda, R.Kochi University, JapanUNSPECIFIEDUNSPECIFIED
Kameda, S.Rikkyo University, Tokyo 171-8501, JapanUNSPECIFIEDUNSPECIFIED
Fuse, T.National Institute of Information and Communications Technology, Kashima 314-8501, JapanUNSPECIFIEDUNSPECIFIED
Miyamoto, H.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIEDUNSPECIFIED
Komatsu, G.IRSPS, Universita' d'AnnunzioUNSPECIFIEDUNSPECIFIED
Sugita, S.University of Tokyo, Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Okada, T.ISAS/JAXA & University of TokyoUNSPECIFIEDUNSPECIFIED
Namiki, N.National Astronomical Observatory of Japan, Mitaka 181-8588, JapanUNSPECIFIEDUNSPECIFIED
Arakawa, M.Kobe University, KobeUNSPECIFIEDUNSPECIFIED
Ishiguro, M.Seoul National University, Seoul 08826, KoreaUNSPECIFIEDUNSPECIFIED
Abe, M.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Gaskell, R.Planetary Science Institute, Altadena, CAUNSPECIFIEDUNSPECIFIED
Palmer, E.Planetary Science Institute, Tucson, AZ, USAUNSPECIFIEDUNSPECIFIED
Barnouin, O.S.Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723UNSPECIFIEDUNSPECIFIED
Michel, P.Lagrange Laboratory, University of Nice CNRS, FranceUNSPECIFIEDUNSPECIFIED
French, A. S.V.University of Colorado, Boulder, CO 80309, USAUNSPECIFIEDUNSPECIFIED
McMahon, J. W.University of Colorado, Boulder, CO 80309, USAUNSPECIFIEDUNSPECIFIED
Scheeres, D. J.University of Colorado, Boulder, USAUNSPECIFIEDUNSPECIFIED
Abell, P. A.NASA Johnson Space Center, Houston, TX 77058, USAUNSPECIFIEDUNSPECIFIED
Yamamoto, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
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 , JapanUNSPECIFIEDUNSPECIFIED
Shirai, K.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Matsuoka, M.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Yamada, M.Chiba Institute of Technology, JapanUNSPECIFIEDUNSPECIFIED
Yokota, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Suzuki, H.Meiji University, Kawasaki 214-8571, JapanUNSPECIFIEDUNSPECIFIED
Yoshioka, K.University of Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Cho, Y.University of Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Tanaka, S.Kobe University, KobeUNSPECIFIEDUNSPECIFIED
Nishikawa, N.Kobe University, KobeUNSPECIFIEDUNSPECIFIED
Sugiyama, T.University of Aizu, Aizu-Wakamatsu 965-8580, JapanUNSPECIFIEDUNSPECIFIED
Kikuchi, H.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIEDUNSPECIFIED
Hemmi, R.The University of Tokyo, Tokyo 113-0033, JapanUNSPECIFIEDUNSPECIFIED
Yamaguchi, T.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Ogawa, N.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Ono, G.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Mimasu, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Yoshikawa, K.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Takahashi, T.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Takei, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Fujii, A.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Hirose, C.Research and Development Directorate, JAXA, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Iwata, T.Japan Aerospace Exploration Agency (JAXA), Sagamihara, JapanUNSPECIFIEDUNSPECIFIED
Hayakawa, M.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Hosoda, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Mori, O.ISAS/JAXA JapanUNSPECIFIEDUNSPECIFIED
Sawada, H.ISAS, JAXA, JapanUNSPECIFIEDUNSPECIFIED
Shimada, T.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Soldini, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Yano, H.Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Tsukizaki, R.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Ozaki, M.ISAS/JAXA, JapanUNSPECIFIEDUNSPECIFIED
Iijima, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Ogawa, K.Kobe University, Kobe 657-8501, JapanUNSPECIFIEDUNSPECIFIED
Fujimoto, M.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Chôfu, JapanUNSPECIFIEDUNSPECIFIED
Ho, Tra-MiTra-Mi.Ho (at) dlr.dehttps://orcid.org/0000-0003-3378-3227UNSPECIFIED
Moussi, Aureliecnes toulouseUNSPECIFIEDUNSPECIFIED
Jaumann, Rralf.jaumann (at) dlr.deUNSPECIFIEDUNSPECIFIED
Bibring, J-.P.IAS OrsayUNSPECIFIEDUNSPECIFIED
Krause, ChristianChristian.Krause (at) dlr.deUNSPECIFIEDUNSPECIFIED
Terui, F.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Saiki, T.ISAS/JAXA JapanUNSPECIFIEDUNSPECIFIED
Nakazawa, S.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
Tsuda, Y.Institute of Space and Astronautical Science, Sagamihara, Kanagawa, JapanUNSPECIFIEDUNSPECIFIED
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 Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):Project MASCOT Science and operation (old)
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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