The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes-Reference-Cited by-同舟云学术

The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes

Published:2019-04-19 Issue:6437 Volume:364 Page:
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Sugita S.¹²^ORCID,Honda R.³^ORCID,Morota T.⁴^ORCID,Kameda S.⁵^ORCID,Sawada H.⁶^ORCID,Tatsumi E.¹^ORCID,Yamada M.²^ORCID,Honda C.⁷^ORCID,Yokota Y.³⁶^ORCID,Kouyama T.⁸^ORCID,Sakatani N.⁶^ORCID,Ogawa K.⁹^ORCID,Suzuki H.¹⁰^ORCID,Okada T.¹⁶^ORCID,Namiki N.¹¹¹²^ORCID,Tanaka S.⁶¹²,Iijima Y.⁶,Yoshioka K.¹^ORCID,Hayakawa M.⁶^ORCID,Cho Y.¹^ORCID,Matsuoka M.⁶^ORCID,Hirata N.⁷^ORCID,Hirata N.⁹^ORCID,Miyamoto H.¹^ORCID,Domingue D.¹³,Hirabayashi M.¹⁴^ORCID,Nakamura T.¹⁵^ORCID,Hiroi T.¹⁶^ORCID,Michikami T.¹⁷^ORCID,Michel P.¹⁸^ORCID,Ballouz R.-L.⁶¹⁹^ORCID,Barnouin O. S.²⁰^ORCID,Ernst C. M.²⁰^ORCID,Schröder S. E.²¹^ORCID,Kikuchi H.¹^ORCID,Hemmi R.¹^ORCID,Komatsu G.²²²^ORCID,Fukuhara T.⁵^ORCID,Taguchi M.⁵^ORCID,Arai T.²³^ORCID,Senshu H.²^ORCID,Demura H.⁷^ORCID,Ogawa Y.⁷^ORCID,Shimaki Y.⁶^ORCID,Sekiguchi T.²⁴^ORCID,Müller T. G.²⁵^ORCID,Hagermann A.²⁶^ORCID,Mizuno T.⁶^ORCID,Noda H.¹¹^ORCID,Matsumoto K.¹¹¹²^ORCID,Yamada R.⁷^ORCID,Ishihara Y.⁶^ORCID,Ikeda H.²⁷,Araki H.¹¹^ORCID,Yamamoto K.¹¹^ORCID,Abe S.²⁸,Yoshida F.²^ORCID,Higuchi A.¹¹^ORCID,Sasaki S.²⁹^ORCID,Oshigami S.¹¹^ORCID,Tsuruta S.¹¹,Asari K.¹¹,Tazawa S.¹¹^ORCID,Shizugami M.¹¹^ORCID,Kimura J.²⁹^ORCID,Otsubo T.³⁰^ORCID,Yabuta H.³¹^ORCID,Hasegawa S.⁶^ORCID,Ishiguro M.³²^ORCID,Tachibana S.¹^ORCID,Palmer E.¹³^ORCID,Gaskell R.¹³^ORCID,Le Corre L.¹³^ORCID,Jaumann R.²¹^ORCID,Otto K.²¹^ORCID,Schmitz N.²¹,Abell P. A.³³^ORCID,Barucci M. A.³⁴^ORCID,Zolensky M. E.³³^ORCID,Vilas F.¹³^ORCID,Thuillet F.¹⁸^ORCID,Sugimoto C.¹^ORCID,Takaki N.¹^ORCID,Suzuki Y.¹^ORCID,Kamiyoshihara H.¹^ORCID,Okada M.¹^ORCID,Nagata K.⁸^ORCID,Fujimoto M.⁶,Yoshikawa M.⁶¹²^ORCID,Yamamoto Y.⁶¹²^ORCID,Shirai K.⁶^ORCID,Noguchi R.⁶^ORCID,Ogawa N.⁶^ORCID,Terui F.⁶^ORCID,Kikuchi S.⁶,Yamaguchi T.⁶^ORCID,Oki Y.¹^ORCID,Takao Y.¹^ORCID,Takeuchi H.⁶^ORCID,Ono G.²⁷^ORCID,Mimasu Y.⁶^ORCID,Yoshikawa K.²⁷^ORCID,Takahashi T.⁶^ORCID,Takei Y.⁶²⁷^ORCID,Fujii A.⁶^ORCID,Hirose C.²⁷^ORCID,Nakazawa S.⁶^ORCID,Hosoda S.⁶^ORCID,Mori O.⁶^ORCID,Shimada T.⁶,Soldini S.⁶^ORCID,Iwata T.⁶¹²^ORCID,Abe M.⁶¹²^ORCID,Yano H.⁶¹²^ORCID,Tsukizaki R.⁶^ORCID,Ozaki M.⁶¹²,Nishiyama K.⁶^ORCID,Saiki T.⁶^ORCID,Watanabe S.⁴⁶^ORCID,Tsuda Y.⁶¹²^ORCID

Affiliation:

1. The University of Tokyo, Tokyo 113-0033, Japan.

2. Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.

3. Kochi University, Kochi 780-8520, Japan.

4. Nagoya University, Nagoya 464-8601, Japan.

5. Rikkyo University, Tokyo 171-8501, Japan.

6. Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.

7. University of Aizu, Aizu-Wakamatsu 965-8580, Japan.

8. National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan.

9. Kobe University, Kobe 657-8501, Japan.

10. Meiji University, Kawasaki 214-8571, Japan.

11. National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.

12. SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan.

13. Planetary Science Institute, Tucson, AZ 85719, USA.

14. Auburn University, Auburn, AL 36849, USA.

15. Tohoku University, Sendai 980-8578, Japan.

16. Brown University, Providence, RI 02912, USA.

17. Kindai University, Higashi-Hiroshima 739-2116, Japan.

18. Université Côte d’Azur, Observatoire de la Côte d’Azur, Centre National de le Recherche Scientifique (CNRS), Laboratoire Lagrange, 06304 Nice, France.

19. University of Arizona, Tucson, AZ 85705, USA.

20. Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.

21. German Aerospace Center (DLR), Institute of Planetary Research, 12489 Berlin, Germany.

22. International Research School of Planetary Sciences, Università d’Annunzio, 65127 Pescara, Italy.

23. Ashikaga University, Ashikaga 326-8558, Japan.

24. Hokkaido University of Education, Asahikawa 070-8621, Japan.

25. Max-Planck-Institut für Extraterrestrische Physik, 85748 Garching, Germany.

26. University of Stirling, FK9 4LA, Scotland, UK.

27. Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan.

28. Nihon University, Funabashi 274-8501, Japan.

29. Osaka University, Toyonaka 560-0043, Japan.

30. Hitotsubashi University, Tokyo 186-8601, Japan.

31. Hiroshima University, Higashi-Hiroshima 739-8526, Japan.

32. Seoul National University, Seoul 08826, Korea.

33. NASA Johnson Space Center, Houston, TX 77058, USA.

34. Laboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique (LESIA)–Observatoire de Paris, Paris Sciences et Lettres (PSL), Centre National de le Recherche Scientifique (CNRS), Sorbonne Université, Université Paris-Diderot, 92195 Meudon Principal Cedex, France.

Abstract

Hayabusa2 at the asteroid Ryugu Asteroids fall to Earth in the form of meteorites, but these provide little information about their origins. The Japanese mission Hayabusa2 is designed to collect samples directly from the surface of an asteroid and return them to Earth for laboratory analysis. Three papers in this issue describe the Hayabusa2 team's study of the near-Earth carbonaceous asteroid 162173 Ryugu, at which the spacecraft arrived in June 2018 (see the Perspective by Wurm). Watanabe et al. measured the asteroid's mass, shape, and density, showing that it is a “rubble pile” of loose rocks, formed into a spinning-top shape during a prior period of rapid spin. They also identified suitable landing sites for sample collection. Kitazato et al. used near-infrared spectroscopy to find ubiquitous hydrated minerals on the surface and compared Ryugu with known types of carbonaceous meteorite. Sugita et al. describe Ryugu's geological features and surface colors and combined results from all three papers to constrain the asteroid's formation process. Ryugu probably formed by reaccumulation of rubble ejected by impact from a larger asteroid. These results provide necessary context to understand the samples collected by Hayabusa2, which are expected to arrive on Earth in December 2020. Science , this issue p. 268 , p. 272 , p. eaaw0422 ; see also p. 230

Funder

National Aeronautics and Space Administration

Science and Technology Facilities Council

European Union’s Horizon 2020 research and innovation programme

Japanese Society for Promotion of Science

French space agency CNES

The Department of Aerospace Engineering at Auburn University

Academies of Excellence: Complex systems and Space, environment, risk, and resilience

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary