Bibcode
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 et al.
Bibliographical reference
Science
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2023
Journal
Citations
26
Refereed citations
26
Description
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.
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Minor Bodies of the Solar System
This project studies the physical and compositional properties of the so-called minor bodies of the Solar System, that includes asteroids, icy objects, and comets. Of special interest are the trans-neptunian objects (TNOs), including those considered the most distant objects detected so far (Extreme-TNOs or ETNOs); the comets and the comet-asteroid
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León Cruz