P
Patrick Michel
Researcher at Centre national de la recherche scientifique
Publications - 263
Citations - 10535
Patrick Michel is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Asteroid & Near-Earth object. The author has an hindex of 51, co-authored 239 publications receiving 8517 citations. Previous affiliations of Patrick Michel include Armagh Observatory & Queen's University.
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Journal ArticleDOI
Debiased Orbital and Absolute Magnitude Distribution of the Near-Earth Objects
William F. Bottke,Alessandro Morbidelli,Robert Jedicke,Jean-Marc Petit,Harold F. Levison,Patrick Michel,Travis S. Metcalfe +6 more
TL;DR: In this article, a best-fit model of the near-Earth objects (NEOs) population is presented, which is fit to known NEs discovered or accidentally rediscovered by Spacewatch.
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Dynamical Lifetimes of Objects Injected into Asteroid Belt Resonances
Brett Gladman,Fabbio Migliorini,Alessandro Morbidelli,Vincenzo Zappalà,Patrick Michel,Alberto Cellino,Christiane Froeschlé,Harold F. Levison,Mark Bailey,Martin J. Duncan +9 more
TL;DR: The authors showed that the typical dynamical lifetimes of objects that could become near-Earth asteroids or meteorites are only a few million years, with the majority destroyed by being transferred to Jupiter-crossing orbits or being driven into the sun.
Journal ArticleDOI
Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu—A spinning top–shaped rubble pile
Sei-ichiro Watanabe,Sei-ichiro Watanabe,Masatoshi Hirabayashi,Naru Hirata,Na. Hirata,Rina Noguchi,Yuri Shimaki,H. Ikeda,Eri Tatsumi,Makoto Yoshikawa,Makoto Yoshikawa,Shota Kikuchi,Hikaru Yabuta,Tomoki Nakamura,Shogo Tachibana,Shogo Tachibana,Yoshiaki Ishihara,Tomokatsu Morota,Kohei Kitazato,Naoya Sakatani,Koji Matsumoto,Koji Wada,Hiroki Senshu,C. Honda,Tatsuhiro Michikami,Hiroshi Takeuchi,Hiroshi Takeuchi,Toru Kouyama,R. Honda,Shingo Kameda,Tetsuharu Fuse,Hideaki Miyamoto,Goro Komatsu,S. Sugita,Tatsuaki Okada,Tatsuaki Okada,Noriyuki Namiki,Masahiko Arakawa,Masateru Ishiguro,Masanao Abe,Masanao Abe,Robert Gaskell,Eric Palmer,Olivier S. Barnouin,Patrick Michel,A. S. French,Jay W. McMahon,Daniel J. Scheeres,Paul A. Abell,Yukio Yamamoto,Yukio Yamamoto,Satoshi Tanaka,Satoshi Tanaka,Kei Shirai,Moe Matsuoka,Manabu Yamada,Y. Yokota,Y. Yokota,H. Suzuki,Kosuke Yoshioka,Yuichiro Cho,Naoki Nishikawa,T. Sugiyama,Hideaki Kikuchi,Ryodo Hemmi,Tomohiro Yamaguchi,Naoko Ogawa,Go Ono,Yuya Mimasu,Kent Yoshikawa,T. Takahashi,Yuto Takei,Atsushi Fujii,Chikako Hirose,Takahiro Iwata,Takahiro Iwata,Masahiro Hayakawa,Satoshi Hosoda,Osamu Mori,Hirotaka Sawada,Takanobu Shimada,Stefania Soldini,Hajime Yano,Hajime Yano,Ryudo Tsukizaki,M. Ozaki,M. Ozaki,Yuichi Iijima,K. Ogawa,Masaki Fujimoto,T. M. Ho,Aurelie Moussi,Ralf Jaumann,J. P. Bibring,Christian Krause,Fuyuto Terui,Takanao Saiki,Satoru Nakazawa,Yoshiyuki Tsuda,Yoshiyuki Tsuda +99 more
TL;DR: The Hayabusa2 spacecraft measured the mass, size, shape, density, and spin rate of asteroid Ryugu, showing that it is a porous rubble pile, and observations of Ryugu's shape, mass, and geomorphology suggest that Ryugu was reshaped by centrifugally induced deformation during a period of rapid rotation.
Journal ArticleDOI
Rotational breakup as the origin of small binary asteroids
TL;DR: Walsh et al. as mentioned in this paper used the thermal YORP (Yarkovsky-O'Keefe-Radzievskii-i-Paddack) effect to model the formation of asteroids with satellites.
Journal ArticleDOI
The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes
Seiji Sugita,Seiji Sugita,Rie Honda,Tomokatsu Morota,Shingo Kameda,Hirotaka Sawada,Eri Tatsumi,Manabu Yamada,C. Honda,Yasuhiro Yokota,Yasuhiro Yokota,Toru Kouyama,Naoya Sakatani,K. Ogawa,H. Suzuki,Tatsuaki Okada,Tatsuaki Okada,Noriyuki Namiki,Satoshi Tanaka,Satoshi Tanaka,Yuichi Iijima,Kosuke Yoshioka,Masahiro Hayakawa,Yuichiro Cho,Moe Matsuoka,Naru Hirata,Hideaki Miyamoto,Deborah L. Domingue,Masatoshi Hirabayashi,Tomoki Nakamura,Takahiro Hiroi,Tatsuhiro Michikami,Patrick Michel,Ronald-Louis Ballouz,Ronald-Louis Ballouz,Olivier S. Barnouin,Carolyn M. Ernst,Stefan Schröder,Hideaki Kikuchi,Ryodo Hemmi,Goro Komatsu,Goro Komatsu,T. Fukuhara,Makoto Taguchi,Takehiko Arai,Hiroki Senshu,Hirohide Demura,Yoshiko Ogawa,Yuri Shimaki,Tomohiko Sekiguchi,T. G. Müller,Axel Hagermann,Takahide Mizuno,Hirotomo Noda,Koji Matsumoto,R. Yamada,Yoshiaki Ishihara,H. Ikeda,Hiroshi Araki,K. Yamamoto,Shinsuke Abe,Fumi Yoshida,A. Higuchi,Sho Sasaki,S. Oshigami,Seiitsu Tsuruta,Kazuyoshi Asari,Seiichi Tazawa,M. Shizugami,J. Kimura,Toshimichi Otsubo,Hikaru Yabuta,Sunao Hasegawa,Masateru Ishiguro,Shogo Tachibana,Eric Palmer,Robert Gaskell,L. Le Corre,Ralf Jaumann,Katharina A. Otto,Nicole Schmitz,Paul A. Abell,M. A. Barucci,Michael E. Zolensky,Faith Vilas,Florian Thuillet,C. Sugimoto,N. Takaki,Yutaka Suzuki,Hiroaki Kamiyoshihara,Masato Okada,Kenji Nagata,Masaki Fujimoto,Makoto Yoshikawa,Makoto Yoshikawa,Yukio Yamamoto,Yukio Yamamoto,Kei Shirai,Rina Noguchi,Naoko Ogawa,Fuyuto Terui,Shota Kikuchi,Tomohiro Yamaguchi,Yusuke Oki,Yuki Takao,Hiroshi Takeuchi,Go Ono,Yuya Mimasu,Kent Yoshikawa,T. Takahashi,Yuto Takei,Atsushi Fujii,Chikako Hirose,Satoru Nakazawa,Satoshi Hosoda,Osamu Mori,Takanobu Shimada,Stefania Soldini,Takahiro Iwata,Takahiro Iwata,Masanao Abe,Masanao Abe,Hajime Yano,Hajime Yano,Ryudo Tsukizaki,M. Ozaki,M. Ozaki,Kazutaka Nishiyama,Takanao Saiki,Sei-ichiro Watanabe,Sei-ichiro Watanabe,Yoshiyuki Tsuda,Yoshiyuki Tsuda +132 more
TL;DR: Spectral observations and a principal components analysis suggest that Ryugu originates from the Eulalia or Polana asteroid family in the inner main belt, possibly via more than one generation of parent bodies.