Akiko Miyazaki
81 Papers
7 Citations
Akiko Miyazaki is an academic researcher. The author has contributed to research in topics: Asteroid & Meteorite. The author has an hindex of 1, co-authored 3 publications.
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Papers
Compositional heterogeneity of insoluble organic matter extracted from asteroid Ryugu samples
Eric Quirico,Lydie Bonal,Yoko Kebukawa,K. Amano,Hikaru Yabuta,Van T. H. Phan,Pierre Beck,Laurent Remusat,Emmanuel Dartois,Cécile Engrand,Zita Martins,L. D. Bejach,Alexandre Dazzi,Ariane Deniset-Besseau,Jean Duprat,Jérémie Mathurin,Gilles Montagnac,Jens Barosch,G. D. Cody,Bradley T. De Gregorio,Yuma Enokido,Minako Hashiguchi,Kanami Kamide,David Kilcoyne,Mutsumi Komatsu,Megumi Matsumoto,Smail Mostefaoui,Larry R. Nittler,Takuji Ohigashi,Taiga Okumura,Scott A. Sandford,M. Shigenaka,Rhonda Stroud,H. Suga,Yoshio Takahashi,Yasuo Takeichi,Yusuke Tamenori,M. J. Verdier-Paoletti,Daisuke Wakabayashi,S. Yamashita,Tomoki Nakamura,Hiroshi Naraoka,Takaaki Noguchi,Ryuji Okazaki,Hisayoshi Yurimoto,Kanako Sakamoto,Shogo Tachibana,Sei-ichiro Watanabe,Yuichi Tsuda,Toru Yada,M. Nishimura,Aiko Nakato,Akiko Miyazaki,Kasumi Yogata,Masanao Abe,Tatsuaki Okada,Tomohitro Usui,Makoto Yoshikawa,Takanao Saiki,Satoshi Tanaka,Fuyuto Terui,Satoru Nakazawa +61 more
- 13 Nov 2023
TL;DR: The IOM extracted from Ryugu samples is similar to IOM in primitive chondrites, indicating limited thermal metamorphism. One sample displays chemical signatures consistent with a mild heating due to impacts. The lower carbonyl abundance in Ryugu IOM samples compared to primitive chondrites is noteworthy.
A newly revised estimation of bulk densities and examination of the shape of individual Ryugu grains
Akiko Miyazaki,Toru Yada,Kasumi Yogata,Kentaro Hatakeda,Aiko Nakato,M. Nishimura,Kana Nagashima,K. Kumagai,Yuya Hitomi,Hiromichi Soejima,Rui Tahara,Rei Kanemaru,Arisa Nakano,M. Yoshitake,Ayako Iwamae,Shizuho Furuya,Akira Tsuchiyama,Shogo Tachibana,Tatsuhiro Michikami,Tatsuaki Okada,Masanao Abe,Tomohiro Usui +21 more
TL;DR: Researchers estimated the bulk density of 637 Ryugu grains using X-ray micro-computed tomography, finding an average density of 1.79 ± 0.31 g/cm³, with variations between sampling sites and consistent with CI chondrite densities.
Correlated IR-SEM-TEM studies of three different grains from Ryugu: From the initial material to post-accretional processes
A. Aleon-Toppani,Rosario Brunetto,Z. Dionnet,Stefano Rubino,Donia Baklouti,François Brisset,Maxime Vallet,Eva Heripre,Tomoki Nakamura,Cateline Lantz,Zahia Djouadi,F Borondics,Christophe Sandt,David Troadec,O. Mivumbi,Megumi Matsumoto,K. Amano,T. Morita,Hisayoshi Yurimoto,Takaaki Noguchi,Ryuji Okazaki,Hikaru Yabuta,Hiroshi Naraoka,Kanako Sakamoto,Shogo Tachibana,Toru Yada,M. Nishimura,Aiko Nakato,Akiko Miyazaki,Kasumi Yogata,Masanao Abe,Tatsuaki Okada,Tomohira Usui,Makoto Yoshikawa,Takanao Saiki,Satoshi Tanaka,Fuyuto Terui,Satoru Nakazawa,Sei-ichiro Watanabe,Yuichi Tsuda +39 more
TL;DR: A multi-analytical study of Ryugu fragments reveals diverse alteration histories, with some sections showing features similar to cometary material, supporting an outer solar system origin for the Ryugu parent body and proposing a chronology of formation and evolution.
Rock Magnetic Characterization of Returned Samples From Asteroid (162173) Ryugu: Implications for Paleomagnetic Interpretation and Paleointensity Estimation
M. Sato,Yuki Kimura,Satoshi Tanaka,Tadahiro Hatakeyama,Seiji Sugita,Tomoki Nakamuna,Shogo Tachibana,Hisayoshi Yurimoto,Takaaki Noguchi,Ryuji Okazaki,Hikaru Yabuta,Hiroshi Naraoka,Kanako Sakamoto,Toru Yada,M. Nishimura,Aiko Nakato,Akiko Miyazaki,Kasumi Yogata,Masanao Abe,Tatsuaki Okada,Tomohiro Usui,Makoto Yoshikawa,Takanao Saiki,Fuyuto Terui,Satoru Nakazawa,Sei-ichiro Watanabe,Yuichi Tsuda +26 more
- 24 Oct 2022
TL;DR: In this article , the SIRM paleointensity constant was obtained for two Ryugu samples, and the median value was 3,318 ± 1,038 μT, which is close to the literature's value based on the average among magnetite, titanomagnetite, pyrrhotite, and FeNi alloys.
Incipient space weathering on asteroid 162173 Ryugu recorded by pyrrhotite
D. Harries,Toru Matsumoto,F. Langenhorst,Takaaki Noguchi,Akira Miyake,Yohei Igami,Mitsutaka Haruta,Yusuke Seto,M. Miyahara,Naotaka Tomioka,Hikaru Saito,Satoshi Hata,Aki Takigawa,Yusuke Nakauchi,Shogo Tachibana,Tomoki Nakamura,Megumi Matsumoto,Hope Ishii,J. P. Bradley,Kenta K. Ohtaki,E. Dobrică,H. Leroux,Corentin Le Guillou,Damien Jacob,Francisco de la Peña,Sylvain Laforet,Bahae‐eddine Mouloud,Maya Marinova,Pierre Beck,Van T. H. Phan,R. Victor Rebois,Neyda M. Abreu,Jennifer Gray,T. Zega,Pierre-Marie Zanetta,M. S. Thompson,Rhonda M. Stroud,Katherine Burgess,Brittany A. Cymes,J. Bridges,Leon Hicks,L. Daly,Phil A. Bland,M. Zolensky,David R. Frank,James Martinez,Akira Tsuchiyama,Masahiro Yasutake,Junya Matsuno,Shota Okumura,I. Mitsukawa,K. Uesugi,M. Uesugi,Akihisa Takeuchi,Mingqi Sun,Satomi Enju,Tatsuhiro Michikami,H. Yurimoto,Ryuji Okazaki,Hikaru Yabuta,Hiroshi Naraoka,Kanako Sakamoto,Toru Yada,M. Nishimura,Aiko Nakato,Akiko Miyazaki,Kasumi Yogata,Masanao Abe,Tatsuaki Okada,Tomohiro Usui,Makoto Yoshikawa,Takanao Saiki,Satoshi Tanaka,Fuyuto Terui,Satoru Nakazawa,Sei-ichiro Watanabe,Yuichi Tsuda +76 more
- 15 May 2024
TL;DR: Space weathering on asteroid Ryugu recorded by pyrrhotite crystal surfaces shows evidence for mass loss and diffusive redistribution of iron and sulfur.