Macromolecular organic matter in samples of the asteroid (162173) Ryugu

• 成果类型: Article
• 署名作者: Yabuta, Hikaru; Cody, George D.; Engrand, Cecile; Kebukawa, Yoko; De Gregorio, Bradley; Bonal, Lydie; Remusat, Laurent; Stroud, Rhonda; Quirico, Eric; Nittler, Larry; Hashiguchi, Minako; Komatsu, Mutsumi; Okumura, Taiga; Mathurin, Jeremie; Dartois, Emmanuel; Duprat, Jean; Takahashi, Yoshio; Takeichi, Yasuo; Kilcoyne, David; Yamashita, Shohei; Dazzi, Alexandre; Deniset-Besseau, Ariane; Sandford, Scott; Martins, Zita; Tamenori, Yusuke; Ohigashi, Takuji; Suga, Hiroki; Wakabayashi, Daisuke; Verdier-Paoletti, Maximilien; Mostefaoui, Smail; Montagnac, Gilles; Barosch, Jens; Kamide, Kanami; Shigenaka, Miho; Bejach, Laure; Matsumoto, Megumi; Enokido, Yuma; Noguchi, Takaaki; Yurimoto, Hisayoshi; Nakamura, Tomoki; Okazaki, Ryuji; Naraoka, Hiroshi; Sakamoto, Kanako; Connolly, Jr Harold C.; Lauretta, Dante S.; Abe, Masanao; Okada, Tatsuaki; Yada, Toru; Nishimura, Masahiro; Yogata, Kasumi; Nakato, Aiko; Yoshitake, Miwa; Iwamae, Ayako; Furuya, Shizuho; Hatakeda, Kentaro; Miyazaki, Akiko; Soejima, Hiromichi; Hitomi, Yuya; Kumagai, Kazuya; Usui, Tomohiro; Hayashi, Tasuku; Yamamoto, Daiki; Fukai, Ryota; Sugita, Seiji; Kitazato, Kohei; Hirata, Naru; Honda, Rie; Morota, Tomokatsu; Tatsumi, Eri; Sakatani, Naoya; Namiki, Noriyuki; Matsumoto, Koji; Noguchi, Rina; Wada, Koji; Senshu, Hiroki; Ogawa, Kazunori; Yokota, Yasuhiro; Ishihara, Yoshiaki; Shimaki, Yuri; Yamada, Manabu; Honda, Chikatoshi; Michikami, Tatsuhiro; Matsuoka, Moe; Hirata, Naoyuki; Arakawa, Masahiko; Okamoto, Chisato; Ishiguro, Masateru; Jaumann, Ralf; Bibring, Jean-Pierre; Grott, Matthias; Schroder, Stefan; Otto, Katharina; Pilorget, Cedric; Schmitz, Nicole; Biele, Jens; Ho, Tra-Mi; Moussi-Soffys, Aurelie; Miura, Akira; Noda, Hirotomo; Yamada, Tetsuya; Yoshihara, Keisuke; Kawahara, Kosuke; Ikeda, Hitoshi; Yamamoto, Yukio; Shirai, Kei; Kikuchi, Shota; Ogawa, Naoko; Takeuchi, Hiroshi; Ono, Go; Mimasu, Yuya; Yoshikawa, Kent; Takei, Yuto; Fujii, Atsushi; Iijima, Yu-ichi; Nakazawa, Satoru; Hosoda, Satoshi; Iwata, Takahiro; Hayakawa, Masahiko; Sawada, Hirotaka; Yano, Hajime; Tsukizaki, Ryudo; Ozaki, Masanobu; Terui, Fuyuto; Tanaka, Satoshi; Fujimoto, Masaki; Yoshikawa, Makoto; Saiki, Takanao; Tachibana, Shogo; Watanabe, Sei-ichiro; Tsuda, Yuichi
• 署名单位: Hiroshima University; Hiroshima University; Carnegie Institution for Science; Centre National de la Recherche Scientifique (CNRS); Universite Paris Cite; Universite Paris Saclay; Yokohama National University; United States Department of Defense; United States Navy; United States Naval Research Laboratory; Institut de Planetologie et d'Astrophysique de Grenoble (IPAG); Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Museum National d'Histoire Naturelle (MNHN); Universite Paris Cite; Centre National de la Recherche Scientifique (CNRS); Sorbonne Universite; Arizona State University; Arizona State University-Tempe; Arizona State University; Arizona State University-Tempe; Nagoya University; Waseda University; University of Tokyo; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); High Energy Accelerator Research Organization (KEK); United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; National Aeronautics & Space Administration (NASA); NASA Ames Research Center; Universidade de Lisboa; Universidade de Lisboa; Japan Synchrotron Radiation Research Institute; National Institutes of Natural Sciences (NINS) - Japan; Institute for Molecular Science (IMS); Ecole Normale Superieure de Lyon (ENS de LYON); Universite Claude Bernard Lyon 1; Tohoku University; Kyoto University; Hokkaido University; Kyushu University; Japan Aerospace Exploration Agency (JAXA); Institute of Space & Astronautical Science (ISAS); Rowan University; University of Arizona; Graduate University for Advanced Studies - Japan; University of Tokyo; Chiba Institute of Technology; University of Aizu; Ehime University; Universidad de la Laguna; Instituto de Astrofisica de Canarias; Rikkyo University; National Institutes of Natural Sciences (NINS) - Japan; National Astronomical Observatory of Japan (NAOJ); Niigata University; Japan Aerospace Exploration Agency (JAXA); Kindai University (Kinki University); National Institute of Advanced Industrial Science & Technology (AIST); Kobe University; Seoul National University (SNU); Free University of Berlin; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Sorbonne Universite; Helmholtz Association; German Aerospace Centre (DLR); Lulea University of Technology; Institut Universitaire de France; Helmholtz Association; German Aerospace Centre (DLR); Helmholtz Association; German Aerospace Centre (DLR); Japan Aerospace Exploration Agency (JAXA); Kanagawa Institute Technology
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8634
• DOI: 10.1126/science.abn9057
• 发表日期: 2023-02-24
• 页码: 790-+
• 关键词: molecular-cloud material; tagish lake meteorite; in-situ observation; carbonaceous chondrites; aqueous alteration; isotopic compositions; raman-spectroscopy; orgueil meteorite; cm chondrites; solar-system

摘要

Samples of the carbonaceous asteroid (162173) Ryugu were collected and brought to Earth by the Hayabusa2 spacecraft. We investigated the macromolecular organic matter in Ryugu samples and found that it contains aromatic and aliphatic carbon, ketone, and carboxyl functional groups. The spectroscopic features of the organic matter are consistent with those in chemically primitive carbonaceous chondrite meteorites that experienced parent-body aqueous alteration (reactions with liquid water). The morphology of the organic carbon includes nanoglobules and diffuse carbon associated with phyllosilicate and carbonate minerals. Deuterium and/or nitrogen-15 enrichments indicate that the organic matter formed in a cold molecular cloud or the presolar nebula. The diversity of the organic matter indicates variable levels of aqueous alteration on Ryugu's parent body.