安部正真 (Masanao Abe) - 論文

The Elemental Abundances of Ryugu: Assessment of Chemical Heterogeneities and the Nugget Effect

Tetsuya Yokoyama, Nicolas Dauphas, Ryota Fukai, Tomohiro Usui, Shogo Tachibana, Maria Schönbächler, Henner Busemann, Masanao Abe, Toru Yada

GEOCHEMICAL JOURNAL 2025年

Methylene‐to‐methyl ratio variability in Ryugu samples: Clues to a heterogeneous aqueous alteration

Zélia Dionnet, Zahia Djouadi, Lukas Delaye, Lucas Caron, Rosario Brunetto, Alice Aléon‐Toppani, Cateline Lantz, Stefano Rubino, Donia Baklouti, Tomoki Nakamura …

Meteoritics & Planetary Science 60(2) 273-285 2024年12月24日

Zirconium isotope composition indicates s‐process depletion in samples returned from asteroid Ryugu

Maria Schönbächler, Manuela A. Fehr, Tetsuya Yokoyama, Ikshu Gautam, Nao Nakanishi, Yoshinari Abe, Jérôme Aléon, Conel Alexander, Sachiko Amari, Yuri Amelin …

Meteoritics & Planetary Science 60(1) 3-16 2024年11月25日査読有り

Phosphorus-rich grains in Ryugu samples with major biochemical potential

C. Pilorget, D. Baklouti, J.-P. Bibring, R. Brunetto, M. Ito, I. Franchi, N. Tomioka, M. Uesugi, A. Yamaguchi, R. Greenwood …

Nature Astronomy 8 1529-1535 2024年9月25日

Pyrrhotites in asteroid 162173 Ryugu: Records of the initial changes on their surfaces with aqueous alteration

Hiroharu Yui, Shu-hei Urashima, Morihiko Onose, Mayu Morita, Shintaro Komatani, Izumi Nakai, Yoshinari Abe, Yasuko Terada, Hisashi Homma, Kazuko Motomura …

Geochimica et Cosmochimica Acta 379 172-183 2024年8月

Microscale hydrogen, carbon, and nitrogen isotopic diversity of organic matter in asteroid Ryugu

Larry R Nittler, Jens Barosch, Katherine Burgess, Rhonda M Stroud, Jianhua Wang, Hikaru Yabuta, Yuma Enokido, Megumi Matsumoto, Tomoki Nakamura, Yoko Kebukawa …

Earth and Planetary Science Letters 637 118719-118719 2024年7月査読有り

Incipient space weathering on asteroid 162173 Ryugu recorded by pyrrhotite

Dennis Harries, Toru Matsumoto, Falko Langenhorst, Takaaki Noguchi, Akira Miyake, Yohei Igami, Mitsutaka Haruta, Yusuke Seto, Masaaki Miyahara, Naotaka Tomioka …

Meteoritics and Planetary Science 59(8) 2134-2148 2024年5月15日査読有り

A comprehensive study of apatite grains in Ryugu rock fragments

B. J. Tkalcec, P. Tack, E. De Pauw, B. Bazi, B. Vekemans, M. Lindner, L. Vincze, M. Di Michiel, J. Garrevoet, G. Falkenberg …

Meteoritics & Planetary Science 59(8) 2149-2165 2024年5月11日査読有り

Mineralogical approach on laboratory weathering of uncontaminated Ryugu particles: Comparison with Orgueil and perspective for storage and analysis

Naoya Imae, Naotaka Tomioka, Masayuki Uesugi, Makoto Kimura, Akira Yamaguchi, Motoo Ito, Richard C. Greenwood, Tatsuya Kawai, Naoki Shirai, Takuji Ohigashi …

Meteoritics & Planetary Science 59(7) 1705-1722 2024年5月10日査読有り

The Earth atmosphere‐like bulk nitrogen isotope composition obtained by stepwise combustion analyses of Ryugu return samples

Ko Hashizume, Akizumi Ishida, Ayano Chiba, Ryuji Okazaki, Kasumi Yogata, Toru Yada, Fumio Kitajima, Hisayoshi Yurimoto, Tomoki Nakamura, Takaaki Noguchi …

Meteoritics & Planetary Science 59(8) 2117-2133 2024年4月30日査読有り

Nonmagnetic framboid and associated iron nanoparticles with a space-weathered feature from asteroid Ryugu

Yuki Kimura, Takeharu Kato, Satoshi Anada, Ryuji Yoshida, Kazuo Yamamoto, Toshiaki Tanigaki, Tetsuya Akashi, Hiroto Kasai, Kosuke Kurosawa, Tomoki Nakamura …

Nature Communications 15(1) 3493 2024年4月29日査読有り

Coevolution of phyllosilicate, carbon, sulfide, and apatite in Ryugu's parent body

Zack Gainsforth, Gerardo Dominguez, Kana Amano, Megumi Matsumoto, Yuri Fujioka, Eiichi Kagawa, Tomoki Nakamura, Shogo Tachibana, Tomoyo Morita, Mizuha Kikuiri …

Meteoritics and Planetary Science 59(8) 2073-2096 2024年4月15日査読有り

Mercury (Hg) in Ryugu particles and implications for the origin of volatile elements in early Earth

Naoki Shirai, Motoo Ito, Akira Yamaguchi, Naotaka Tomioka, Masayuki Uesugi, Naoya Imae, Makoto Kimura, Richard Greenwood, Ming-Chang Liu, Takuji Ohigashi …

2024年4月4日

Disequilibrium oxygen isotope distribution among aqueously altered minerals in Ryugu asteroid returned samples

Noriko T. Kita, Kouki Kitajima, Kazuhide Nagashima, Noriyuki Kawasaki, Naoya Sakamoto, Wataru Fujiya, Yoshinari Abe, Jérôme Aléon, Conel M. O'D. Alexander, Sachiko Amari …

Meteoritics & Planetary Science 59(8) 2097-2116 2024年4月査読有り

Unraveling the Cr Isotopes of Ryugu: An Accurate Aqueous Alteration Age and the Least Thermally Processed Solar System Material

Ryoji Tanaka, Dilan M. Ratnayake, Tsutomu Ota, Noah Miklusicak, Tak Kunihiro, Christian Potiszil, Chie Sakaguchi, Katsura Kobayashi, Hiroshi Kitagawa, Masahiro Yamanaka …

The Astrophysical Journal 965(1) 52-52 2024年4月1日査読有り

Alice Aléon-Toppani, Rosario Brunetto, Zélia Dionnet, Stefano Rubino, Donia Baklouti, François Brisset, Maxime Vallet, Eva Heripre, Tomoki Nakamura, Cateline Lantz …

Geochimica et Cosmochimica Acta 371 1-30 2024年4月査読有り

AFM-IR nanospectroscopy of nanoglobule-like particles in Ryugu samples returned by the Hayabusa2 mission

Jérémie Mathurin, Laure Bejach, Emmanuel Dartois, Cécile Engrand, Alexandre Dazzi, Ariane Deniset-Besseau, Jean Duprat, Yoko Kebukawa, Hikaru Yabuta, Lydie Bonal …

Astronomy & Astrophysics 684 A198 2024年2月26日査読有り

Quantification of bulk elemental composition for C‐type asteroid Ryugu samples with nondestructive elemental analysis using muon beam

Kazuhiko Ninomiya, Takahito Osawa, Kentaro Terada, Taiga Wada, Shunsaku Nagasawa, I‐Haun Chiu, Tomoki Nakamura, Tadayuki Takahashi, Yasuhiro Miyake, M. Kenya Kubo …

Meteoritics & Planetary Science 59(8) 2044-2057 2024年1月31日査読有り

Hydrogen in magnetite from asteroid Ryugu

J. Aléon, S. Mostefaoui, H. Bureau, D. Vangu, H. Khodja, K. Nagashima, N. Kawasaki, Y. Abe, C. M. O'D. Alexander, S. Amari …

Meteoritics & Planetary Science 59(8) 2058-2072 2024年1月26日査読有り

Electron microscopy observations of the diversity of Ryugu organic matter and its relationship to minerals at the micro‐ to nano‐scale

Rhonda M. Stroud, Jens Barosch, Lydie Bonal, Katherine Burgess, George D. Cody, Bradley T. De Gregorio, Luke Daly, Emmanuel Dartois, Elena Dobrică, Jean Duprat …

Meteoritics & Planetary Science 59(8) 2023-2043 2024年1月25日査読有り

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