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タイトル: | A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu |
著者: | Noguchi, Takaaki Matsumoto, Toru Miyake, Akira Igami, Yohei Haruta, Mitsutaka Saito, Hikaru Hata, Satoshi Seto, Yusuke Miyahara, Masaaki Tomioka, Naotaka Ishii, Hope A. Bradley, John P. Ohtaki, Kenta K. Dobrică, Elena Leroux, Hugues Le Guillou, Corentin Jacob, Damien de la Peña, Francisco Laforet, Sylvain Marinova, Maya Langenhorst, Falko Harries, Dennis Beck, Pierre Phan, Thi H. V. Rebois, Rolando Abreu, Neyda M. Gray, Jennifer Zega, Thomas Zanetta, Pierre-M. Thompson, Michelle S. Stroud, Rhonda Burgess, Kate Cymes, Brittany A. Bridges, John C. Hicks, Leon Lee, Martin R. Daly, Luke Bland, Phil A. Zolensky, Michael E. Frank, David R. Martinez, James Tsuchiyama, Akira Yasutake, Masahiro Matsuno, Junya Okumura, Shota Mitsukawa, Itaru Uesugi, Kentaro Uesugi, Masayuki Takeuchi, Akihisa Sun, Mingqi Enju, Satomi Takigawa, Aki Michikami, Tatsuhiro Nakamura, Tomoki Matsumoto, Megumi Nakauchi, Yusuke Abe, Masanao Arakawa, Masahiko Fujii, Atsushi Hayakawa, Masahiko Hirata, Naru Hirata, Naoyuki Honda, Rie Honda, Chikatoshi Hosoda, Satoshi Iijima, Yu-ichi Ikeda, Hitoshi Ishiguro, Masateru Ishihara, Yoshiaki Iwata, Takahiro Kawahara, Kousuke Kikuchi, Shota Kitazato, Kohei Matsumoto, Koji Matsuoka, Moe Mimasu, Yuya Miura, Akira Morota, Tomokatsu Nakazawa, Satoru Namiki, Noriyuki Noda, Hirotomo Noguchi, Rina Ogawa, Naoko Ogawa, Kazunori Okada, Tatsuaki Okamoto, Chisato Ono, Go Ozaki, Masanobu Saiki, Takanao Sakatani, Naoya Sawada, Hirotaka Senshu, Hiroki Shimaki, Yuri Shirai, Kei Sugita, Seiji Takei, Yuto Takeuchi, Hiroshi Tanaka, Satoshi Tatsumi, Eri Terui, Fuyuto Tsukizaki, Ryudo Wada, Koji Yamada, Manabu Yamada, Tetsuya Yamamoto, Yukio Yano, Hajime Yokota, Yasuhiro Yoshihara, Keisuke Yoshikawa, Makoto Yoshikawa, Kent Fukai, Ryohta Furuya, Shizuho Hatakeda, Kentaro Hayashi, Tasuku Hitomi, Yuya Kumagai, Kazuya Miyazaki, Akiko Nakato, Aiko Nishimura, Masahiro Soejima, Hiromichi Suzuki, Ayako I. Usui, Tomohiro Yada, Toru Yamamoto, Daiki Yogata, Kasumi Yoshitake, Miwa Connolly, Harold C. Lauretta, Dante S. Yurimoto, Hisayoshi Nagashima, Kazuhide Kawasaki, Noriyuki Sakamoto, Naoya Okazaki, Ryuji Yabuta, Hikaru Naraoka, Hiroshi Sakamoto, Kanako Tachibana, Shogo Watanabe, Sei-ichiro Tsuda, Yuichi |
著者名の別形: | 野口, 高明 松本, 徹 三宅, 亮 伊神, 洋平 治田, 充貴 斉藤, 光 波多, 聰 瀬戸, 雄介 宮原, 正明 富岡, 尚敬 土山, 明 安武, 正展 松野, 淳也 奥村, 翔太 三津川, 到 上杉, 健太朗 上椙, 真之 竹内, 晃久 延寿, 里美 瀧川, 晶 道上, 達広 中村, 智樹 松本, 恵 仲内, 悠祐 安部, 正真 荒川, 政彦 藤井, 淳 早川, 雅彦 平田, 成 平田 直之 本田, 理恵 本田 親寿 細田, 聡史 飯島, 祐一 池田, 人 石黒, 正晃 石原, 吉明 岩田, 隆浩 川原, 康介 菊地, 翔太 北里, 宏平 松本, 晃治 松岡, 萌 三桝, 裕也 三浦, 昭 諸田, 智克 中澤, 暁 竝木, 則行 野田, 寛大 野口, 里奈 尾川, 順子 小川, 和律 岡田, 達明 岡本, 千里 大野, 剛 尾崎, 正伸 佐伯, 孝尚 坂谷, 尚哉 澤田 弘崇 千秋, 博紀 嶌生, 有理 白井, 慶. 杉田, 精司 武井, 悠人 竹内, 央 田中, 智 巽, 瑛理 照井, 冬人 月崎, 竜童 和田, 浩二 山田, 学 山田, 哲哉 山本, 幸生 矢野, 創 横田, 康弘 吉原, 圭介 吉川, 真 吉川, 健人 深井, 稜汰 古屋, 静萌 畠田, 健太朗 林, 佑 人見, 勇矢 熊谷, 和也 宮崎, 明子 中藤, 亜衣子 西村, 征洋 副島, 広道 臼井, 寛裕 矢田, 達 山本, 大貴 与賀田, 佳澄 吉武, 美和 圦本, 尚義 川崎, 教行 坂本, 直哉 岡﨑, 隆司 薮田, ひかる 奈良岡, 浩 坂本, 佳奈子 橘, 省吾 渡邊, 誠一郎 津田, 雄一 |
キーワード: | Meteoritics Planetary science |
発行日: | Feb-2023 |
出版者: | Springer Nature |
誌名: | Nature Astronomy |
巻: | 7 |
号: | 2 |
開始ページ: | 170 |
終了ページ: | 181 |
抄録: | Without a protective atmosphere, space-exposed surfaces of airless Solar System bodies gradually experience an alteration in composition, structure and optical properties through a collective process called space weathering. The return of samples from near-Earth asteroid (162173) Ryugu by Hayabusa2 provides the first opportunity for laboratory study of space-weathering signatures on the most abundant type of inner solar system body: a C-type asteroid, composed of materials largely unchanged since the formation of the Solar System. Weathered Ryugu grains show areas of surface amorphization and partial melting of phyllosilicates, in which reduction from Fe³⁺ to Fe²⁺ and dehydration developed. Space weathering probably contributed to dehydration by dehydroxylation of Ryugu surface phyllosilicates that had already lost interlayer water molecules and to weakening of the 2.7 µm hydroxyl (–OH) band in reflectance spectra. For C-type asteroids in general, this indicates that a weak 2.7 µm band can signify space-weathering-induced surface dehydration, rather than bulk volatile loss. |
記述: | 日焼けで隠された水に富む小惑星リュウグウの素顔. 京都大学プレスリリース. 2022-12-23. |
著作権等: | © The Author(s) 2022 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
URI: | http://hdl.handle.net/2433/279328 |
DOI(出版社版): | 10.1038/s41550-022-01841-6 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2022-12-23-1 |
出現コレクション: | 学術雑誌掲載論文等 |

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