Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples

• 成果类型: Article
• 署名作者: Nakamura, T.; Matsumoto, M.; Amano, K.; Enokido, Y.; Zolensky, M. E.; Mikouchi, T.; Genda, H.; Tanaka, S.; Zolotov, M. Y.; Kurosawa, K.; Wakita, S.; Hyodo, R.; Nagano, H.; Nakashima, D.; Takahashi, Y.; Fujioka, Y.; Kikuiri, M.; Kagawa, E.; Matsuoka, M.; Brearley, A. J.; Tsuchiyama, A.; Uesugi, M.; Matsuno, J.; Kimura, Y.; Sato, M.; Milliken, R. E.; Tatsumi, E.; Sugita, S.; Hiroi, T.; Kitazato, K.; Brownlee, D.; Joswiak, D. J.; Takahashi, M.; Ninomiya, K.; Takahashi, T.; Osawa, T.; Terada, K.; Brenker, F. E.; Tkalcec, B. J.; Vincze, L.; Brunetto, R.; Aleon-Toppani, A.; Chan, Q. H. S.; Roskosz, M.; Viennet, J. -C.; Beck, P.; Alp, E. E.; Michikami, T.; Nagaashi, Y.; Tsuji, T.; Ino, Y.; Martinez, J.; Han, J.; Dolocan, A.; Bodnar, R. J.; Tanaka, M.; Yoshida, H.; Sugiyama, K.; King, A. J.; Fukushi, K.; Suga, H.; Yamashita, S.; Kawai, T.; Inoue, K.; Nakato, A.; Noguchi, T.; Vilas, F.; Hendrix, A. R.; Jaramillo-Correa, C.; Domingue, D. L.; Dominguez, G.; Gainsforth, Z.; Engrand, C.; Duprat, J.; Russell, S. S.; Bonato, E.; Ma, C.; Kawamoto, T.; Wada, T.; Watanabe, S.; Endo, R.; Enju, S.; Riu, L.; Rubino, S.; Tack, P.; Takeshita, S.; Takeichi, Y.; Takeuchi, A.; Takigawa, A.; Takir, D.; Tanigaki, T.; Taniguchi, A.; Tsukamoto, K.; Yagi, T.; Yamada, S.; Yamamoto, K.; Yamashita, Y.; Yasutake, M.; Uesugi, K.; Umegaki, I.; Chiu, I.; Ishizaki, T.; Okumura, S.; Palomba, E.; Pilorget, C.; Potin, S. M.; Alasli, A.; Anada, S.; Araki, Y.; Sakatani, N.; Schultz, C.; Sekizawa, O.; Sitzman, S. D.; Sugiura, K.; Sun, M.; Dartois, E.; De Pauw, E.; Dionnet, Z.; Djouadi, Z.; Falkenberg, G.; Fujita, R.; Fukuma, T.; Gearba, I. R.; Hagiya, K.; Hu, M. Y.; Kato, T.; Kawamura, T.; Kimura, M.; Kubo, M. K.; Langenhorst, F.; Lantz, C.; Lavina, B.; Lindner, M.; Zhao, J.; Vekemans, B.; Baklouti, D.; Bazi, B.; Borondics, F.; Nagasawa, S.; Nishiyama, G.; Nitta, K.; Mathurin, J.; Matsumoto, T.; Mitsukawa, I.; Miura, H.; Miyake, A.; Miyake, Y.; Yurimoto, H.; Okazaki, R.; Yabuta, H.; Naraoka, H.; Sakamoto, K.; Tachibana, S.; Connolly Jr, H. C.; Lauretta, D. S.; Yoshitake, M.; Yoshikawa, M.; Yoshikawa, K.; Yoshihara, K.; Yokota, Y.; Yogata, K.; Yano, H.; Yamamoto, Y.; Yamamoto, D.; Yamada, M.; Yamada, T.; Yada, T.; Wada, K.; Usui, T.; Tsukizaki, R.; Terui, F.; Takeuchi, H.; Takei, Y.; Iwamae, A.; Soejima, H.; Shirai, K.; Shimaki, Y.; Senshu, H.; Sawada, H.; Saiki, T.; Ozaki, M.; Ono, G.; Okada, T.; Ogawa, N.; Ogawa, K.; Noguchi, R.; Noda, H.; Nishimura, M.; Namiki, N.; Nakazawa, S.; Morota, T.; Miyazaki, A.; Miura, A.; Mimasu, Y.; Matsumoto, K.; Kumagai, K.; Kouyama, T.; Kikuchi, S.; Kawahara, K.; Kameda, S.; Iwata, T.; Ishihara, Y.; Ishiguro, M.; Ikeda, H.; Hosoda, S.; Honda, R.; Honda, C.; Hitomi, Y.; Hirata, N.; Hayashi, T.; Hayakawa, M.; Hatakeda, K.; Furuya, S.; Fukai, R.; Fujii, A.; Cho, Y.; Arakawa, M.; Abe, M.; Watanabe, S.; Tsuda, Y.
• 署名单位: Tohoku University; National Aeronautics & Space Administration (NASA); NASA Johnson Space Center; University of Tokyo; Institute of Science Tokyo; Tokyo Institute of Technology; Japan Aerospace Exploration Agency (JAXA); Institute of Space & Astronautical Science (ISAS); Graduate University for Advanced Studies - Japan; Arizona State University; Arizona State University-Tempe; Chiba Institute of Technology; Massachusetts Institute of Technology (MIT); Nagoya University; University of Tokyo; University of Tokyo; Universite PSL; Observatoire de Paris; National Institute of Advanced Industrial Science & Technology (AIST); University of New Mexico; Ritsumeikan University; Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; Chinese Academy of Sciences; Japan Synchrotron Radiation Research Institute; Hokkaido University; Brown University; Instituto de Astrofisica de Canarias; Universidad de la Laguna; University of Aizu; University of Washington; University of Washington Seattle; University of Osaka; University of Tokyo; University of Tokyo; Japan Atomic Energy Agency; University of Osaka; Goethe University Frankfurt; Ghent University; Universite Paris Saclay; Sorbonne Universite; University of London; Royal Holloway University London; Universite Paris Cite; Museum National d'Histoire Naturelle (MNHN); Centre National de la Recherche Scientifique (CNRS); Sorbonne Universite; Centre National de la Recherche Scientifique (CNRS); Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Institut de Planetologie et d'Astrophysique de Grenoble (IPAG); United States Department of Energy (DOE); Argonne National Laboratory; Kindai University (Kinki University); Kobe University; Kyushu University; University of Tokyo; Kwansei Gakuin University; University of Houston System; University of Houston; University of Texas System; University of Texas Austin; Virginia Polytechnic Institute & State University; National Institute for Materials Science; Tohoku University; Natural History Museum London; Kanazawa University; Japan Synchrotron Radiation Research Institute; Graduate University for Advanced Studies - Japan; High Energy Accelerator Research Organization (KEK); Kyoto University; Kyushu University; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; California State University System; California State University San Marcos; University of California System; University of California Berkeley; Universite Paris Cite; Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay; Helmholtz Association; German Aerospace Centre (DLR); California Institute of Technology; Shizuoka University; Institute of Science Tokyo; Tokyo Institute of Technology; Ehime University; European Space Agency; European Space Astronomy Center; High Energy Accelerator Research Organization (KEK); University of Osaka; Hitachi Limited; Kyoto University; National Institute of Advanced Industrial Science & Technology (AIST); National Metrology Institute of Japan; Rikkyo University; Japan Fine Ceramics Center; Toyota Central R&D Labs Inc; Istituto Nazionale Astrofisica (INAF); Institut Universitaire de France; Delft University of Technology; Ritsumeikan University; Aerospace Corporation - USA; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); Kanazawa University; University of Hyogo; Universite Paris Cite; International Christian University; Friedrich Schiller University of Jena; University of Chicago; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Nagoya City University; Hokkaido University; Kyushu University; Hiroshima University; Rowan University; University of Arizona; Japan Aerospace Exploration Agency (JAXA); Kanagawa Institute Technology; University of Tokyo; Niigata University; National Institutes of Natural Sciences (NINS) - Japan; National Astronomical Observatory of Japan (NAOJ); National Institute of Advanced Industrial Science & Technology (AIST); Japan Aerospace Exploration Agency (JAXA); Seoul National University (SNU); Kochi University; Ehime University; Nagoya University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-9077
• DOI: 10.1126/science.abn8671
• 发表日期: 2023-02-24
• 页码: 787-+
• 关键词: interplanetary dust; ci chondrites; amorphous silicates; modal mineralogy; olivine; orgueil; cm; particles; matrix; grains

摘要

Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed similar to 2 million years after the beginning of Solar System formation.