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

Yabuta, Hikaru; Cody, George D.; Engrand, Cécile; Kebukawa, Yoko; De Gregorio, Bradley; Bonal, Lydie; Remusat, Laurent; Stroud, Rhonda; Quirico, Eric; Nittler, Larry; Hashiguchi, Minako; Komatsu, Mutsumi; Okumura, Taiga; Mathurin, Jérémie; 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, 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; Schröder, Stefan; Otto, Katharina; Pilorget, Cedric; Schmitz, Nicole; Biele, Jens; Ho, Tra-Mi; Moussi-Soffys, Aurélie; 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

Yabuta, Hikaru

Department of Earth and Planetary Systems Science, Hiroshima University, Japan.ORCID iD: 0000-0002-4625-5362

Cody, George D.

Earth and Planets Laboratory, Carnegie Institution for Science, United States.ORCID iD: 0000-0003-4176-3648

Engrand, Cécile

Centre National de la Recherche Scientifique, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie ,Université Paris-Saclay, Orsay, France.ORCID iD: 0000-0002-0396-5583

Kebukawa, Yoko

Faculty of Engineering, Yokohama National University, Yokohama, Japan.ORCID iD: 0000-0001-8430-3612

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2023 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 379, no 6634, article id eabn9057Article in journal (Refereed) Published

Abstract [en]

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 Ryugus parent body.

Place, publisher, year, edition, pages

American Association for the Advancement of Science , 2023. Vol. 379, no 6634, article id eabn9057

National Category

Astronomy, Astrophysics and Cosmology

Research subject

Atmospheric Science

Identifiers

URN: urn:nbn:se:ltu:diva-95809DOI: 10.1126/science.abn9057ISI: 000981616600007PubMedID: 36821663Scopus ID: 2-s2.0-85148680748OAI: oai:DiVA.org:ltu-95809DiVA, id: diva2:1741916

Note

Validerad;2023;Nivå 2;2023-12-11 (hanlid);

Funder: Japan Society for the Promotion of Science (JSPS) (JP20H05846, 19H01954, 18H04461, 20H04615, JP17H06458); National Institutes of Natural Sciences (NINS) (AB312007, AB022001, AB032004); Centre National d’Etudes Spatiales (CNES-France) (MIAMI2); DIM-ACAV+ (C3E); LabEx P2IO; PCMI; ANR (COMETOR ANR-18-CE31-0011); European Research Council, HYDROMA (grant no.819587); NASA (80HQTR20T0014, 80HQTR20T0050), (NNX16AK72G, 80NSSC20K0340); Paris Ile-de-France Region-DIM “Matériaux anciens et patrimoniaux.”; Centro de Química Estrutural; Fundação para Ciência e Tecnologia (FCT) (grants UIDB/00100/2020, UIDP/00100/2020, LA/P/0056/2020)

Available from: 2023-03-07 Created: 2023-03-07 Last updated: 2024-03-07Bibliographically approved