Results 41 to 50 of about 4,638 (257)
Derivation of 1.064 μm normal albedos on the C-type asteroid Ryugu from laser pulse intensity measurement of the Hayabusa2 LIDAR
Earth, Planets and Space, 2022 Japanese asteroid explorer Hayabusa2 arrived at C-type asteroid 162,173 Ryugu in June 2018. The laser altimeter (LIDAR) onboard Hayabusa2 measured its own transmitted laser and returned pulse intensities from a Ryugu surface until November 2019.Ryuhei Yamada, Keiko Yamamoto, Shoko Oshigami, Hiroshi Araki, Hiroki Senshu, Hirotomo Noda, Noriyuki Namiki, Koji Matsumoto, Fumi Yoshida, Shinsuke Abe, Naru Hirata, Sho Sasaki, Takahide Mizuno +12 moredoaj +1 more sourceSpace weathering acts strongly on the uppermost surface of Ryugu
Communications Earth & Environment, 2023 Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is Moe Matsuoka, Ei-ichi Kagawa, Kana Amano, Tomoki Nakamura, Eri Tatsumi, Takahito Osawa, Takahiro Hiroi, Ralph Milliken, Deborah Domingue, Driss Takir, Rosario Brunetto, Antonella Barucci, Kohei Kitazato, Seiji Sugita, Yuri Fujioka, Osamu Sasaki, Shiho Kobayashi, Takahiro Iwata, Tomokatsu Morota, Yasuhiro Yokota, Toru Kouyama, Rie Honda, Shingo Kameda, Yuichiro Cho, Kazuo Yoshioka, Hirotaka Sawada, Masahiko Hayakawa, Naoya Sakatani, Manabu Yamada, Hidehiko Suzuki, Chikatoshi Honda, Kazunori Ogawa, Kei Shirai, Cateline Lantz, Stefano Rubino, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Shogo Tachibana, Toru Yada, Masahiro 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 +56 moredoaj +1 more sourceMacromolecular organic matter in samples of the asteroid (162173) Ryugu
Science, 2023 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 ...H. Yabuta, G. Cody, C. Engrand, Y. Kebukawa, Bradley T. De Gregorio, L. Bonal, L. Remusat, R. Stroud, E. Quirico, L. Nittler, M. Hashiguchi, M. Komatsu, Taiga Okumura, J. Mathurin, E. Dartois, J. Duprat, Y. Takahashi, Y. Takeichi, D. Kilcoyne, Shohei Yamashita, A. Dazzi, A. Deniset-Besseau, S. Sandford, Z. Martins, Y. Tamenori, T. Ohigashi, H. Suga, D. Wakabayashi, M. Verdier-Paoletti, S. Mostefaoui, G. Montagnac, J. Barosch, Kanami Kamide, M. Shigenaka, L. Bejach, M. Matsumoto, Y. Enokido, T. Noguchi, H. Yurimoto, Tomoki Nakamura, R. Okazaki, H. Naraoka, K. Sakamoto, H. Connolly, D. Lauretta, M. Abe, T. Okada, T. Yada, M. Nishimura, K. Yogata, A. Nakato, M. Yoshitake, A. Iwamae, S. Furuya, K. Hatakeda, Akiko Miyazaki, H. Soejima, Y. Hitomi, K. Kumagai, T. Usui, T. Hayashi, D. Yamamoto, R. Fukai, S. Sugita, K. Kitazato, N. Hirata, R. Honda, T. Morota, E. Tatsumi, N. Sakatani, N. Namiki, K. Matsumoto, R. Noguchi, K. Wada, H. Senshu, K. Ogawa, Y. Yokota, Y. Ishihara, Y. Shimaki, M. Yamada, C. Honda, T. Michikami, M. Matsuoka, N. Hirata, M. Arakawa, C. Okamoto, M. Ishiguro, R. Jaumann, J. Bibring, M. Grott, S. Schröder, K. Otto, C. Pilorget, N. Schmitz, J. Biele, T. Ho, A. Moussi-Soffys, A. Miura, H. Noda, T. Yamada, Keisuke Yoshihara, K. Kawahara, H. Ikeda, Yukio Yamamoto, K. Shirai, S. Kikuchi, N. Ogawa, H. Takeuchi, G. Ono, Y. Mimasu, K. Yoshikawa, Y. Takei, A. Fujii, Y. Iijima, S. Nakazawa, S. Hosoda, T. Iwata, M. Hayakawa, H. Sawada, H. Yano, R. Tsukizaki, M. Ozaki, F. Terui, S. Tanaka, Masaki Fujimoto, M. Yoshikawa, T. Saiki, S. Tachibana, Sei‐ichiro Watanabe, Y. Tsuda +129 moresemanticscholar +1 more sourceA newly revised estimation of bulk densities and examination of the shape of individual Ryugu grains
Earth, Planets and Space, 2023 The bulk density of grains from a celestial body is a fundamental property related to its composition and structure, contributing to the understanding of its evolutionary history. In this study, we provide the bulk density of 637 grains returned from the Akiko Miyazaki, Toru Yada, Kasumi Yogata, Kentaro Hatakeda, Aiko Nakato, Masahiro Nishimura, Kana Nagashima, Kazuya Kumagai, Yuya Hitomi, Hiromichi Soejima, Rui Tahara, Rei Kanemaru, Arisa Nakano, Miwa Yoshitake, Ayako Iwamae, Shizuho Furuya, Akira Tsuchiyama, Shogo Tachibana, Tatsuhiro Michikami, Tatsuaki Okada, Masanao Abe, Tomohiro Usui +21 moredoaj +1 more sourceThe Oxygen Isotopic Composition of Samples Returned from Asteroid Ryugu with Implications for the Nature of the Parent Planetesimal
The Planetary Science Journal, 2023 We present oxygen isotopic analyses of fragments of the near-Earth C _b -type asteroid Ryugu returned by the Hayabusa2 spacecraft that reinforce the close correspondence between Ryugu and CI chondrites.Haolan Tang, Edward D. Young, Lauren Tafla, Andreas Pack, Tommaso Di Rocco, Yoshinari Abe, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Martin Bizzarro, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon-Gak Choi, Nicolas Dauphas, Andrew M. Davis, Wataru Fujiya, Ryota Fukai, Ikshu Gautam, Makiko K. Haba, Yuki Hibiya, Hiroshi Hidaka, Hisashi Homma, Peter Hoppe, Gary R. Huss, Kiyohiro Ichida, Tsuyoshi Iizuka, Trevor R. Ireland, Akira Ishikawa, Motoo Ito, Shoichi Itoh, Noriyuki Kawasaki, Noriko T. Kita, Kouki Kitajima, Thorsten Kleine, Shintaro Komatani, Alexander N. Krot, Ming-Chang Liu, Yuki Masuda, Kevin D. McKeegan, Mayu Morita, Kazuko Motomura, Frédéric Moynier, Kazuhide Nagashima, Izumi Nakai, Ann Nguyen, Larry Nittler, Morihiko Onose, Changkun Park, Laurette Piani, Liping Qin, Sara S. Russell, Naoya Sakamoto, Maria Schönbächler, Kentaro Terada, Yasuko Terada, Tomohiro Usui, Sohei Wada, Meenakshi Wadhwa, Richard J. Walker, Katsuyuki Yamashita, Qing-Zhu Yin, Tetsuya Yokoyama, Shigekazu Yoneda, Hiroharu Yui, Ai-Cheng Zhang, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, Ryuji Okazaki, Kanako Sakamoto, Hikaru Yabuta, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Tatsuaki Okada, Toru Yada, Kasumi Yogata, Satoru Nakazawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Yuichi Tsuda, Sei-ichiro Watanabe, Makoto Yoshikawa, Shogo Tachibana, Hisayoshi Yurimoto +89 moredoaj +1 more sourceThermal Infrared Imaging Experiments of C-Type Asteroid 162173 Ryugu on Hayabusa2 [PDF]
, 2016 The thermal infrared imager TIR onboard Hayabusa2 has been developed to investigate thermo-physical properties of C-type, near-Earth asteroid 162173 Ryugu.A. Fujiwara, Axel Hagermann, D.A. Paige, F. Vilas, G.J. Consolmagno, H. Hiesinger, H. Hihara, H. Yano, H.H. Kieffer, H.H. Kieffer, Hirohide Demura, Hiroki Senshu, J. Biele, J. Helbert, J. Veverka, Jun Takita, Jörn Helbert, Ken Endo, Kohei Kitazato, M. Delbo, M. Grott, M. Ishiguro, M.P. Golombek, Makoto Taguchi, Naoya Sakatani, O. Groussin, P. Michel, P.R. Christensen, P.R. Christensen, Ryosuke Nakamura, S. Tachibana, S.C. Chase, Satoshi Tanaka, Sunao Hasegawa, T. Fukuhara, T. Okada, T. Okada, T. Spohn, T.-M. Ho, T.G. Müller, Takehiko Arai, Takehiko Wada, Takeshi Imamura, Tatsuaki Okada, Tetsuya Fukuhara, Thomas G. Müller, Tomohiko Sekiguchi, Toru Kouyama, Tsuneo Matsunaga, W.F. Bottke Jr., Y. Tsuda, Yamato Horikawa, Yoshiko Ogawa +52 morecore +2 more sourcesRare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space mission
Earth, Planets and Space, 2022 Millimetre-sized primordial rock fragments originating from asteroid Ryugu were investigated using high energy X-ray fluorescence spectroscopy, providing 2D and 3D elemental distribution and quantitative composition information on the microscopic level ...Pieter Tack, Ella De Pauw, Beverley Tkalcec, Miles Lindner, Benjamin Bazi, Bart Vekemans, Frank Brenker, Marco Di Michiel, Masayuki Uesugi, Hisayoshi Yurimoto, Tomoki Nakamura, Kana Amano, Megumi Matsumoto, Yuri Fujioka, Yuma Enokido, Daisuke Nakashima, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Shogo Tachibana, Toru Yada, Masahiro 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, Laszlo Vincze +37 moredoaj +1 more sourcePhotometric behavior of Ryugu’s NIR spectral parameters
Astronomy & Astrophysics, 2022 Context. JAXA’s Hayabusa2 mission rendezvoused the Ryugu asteroid for 1.5 years to clarify the carbonaceous asteroids’ record for Solar System origin and evolution. Aims. We studied the photometric behavior of the spectral parameters characterizing the near-infrared (NIR) spectra of Ryugu provided by the Hayabusa2/NIRS3 instrument, that is to say 1.9 ...Longobardo, Andrea, Palomba, E., Galiano, Anna, Dirri, Fabrizio, Zinzi, Angelo, D'Amore, Mario, Domingue, Deborah L., Kitazato, K., Yokota, Y., Schroeder, Stephan, Iwata, T., Matsuoka, M., Hiroi, T., Takir, D., Nakamura, T., Abe, M., Ohtake, M., Matsuura, S., Watanabe, S, Yoshikawa, M., Saiki, T., Okada, T., Tanaka, S., Yamamoto, Y., Takei, Y., Shirai, K., Hirata, N., Hirata, N., Matsumoto, K., Tsuda, T. +29 moreopenaire +2 more sourcesGround-based Characterization of Hayabusa2 Mission Target Asteroid
162173 Ryugu: Constraining Mineralogical Composition in Preparation for
Spacecraft Operations
, 2017 Asteroids that are targets of spacecraft missions are interesting because
they present us with an opportunity to validate ground-based spectral
observations. One such object is near-Earth asteroid (NEA) (162173) Ryugu,
which is the target of the Japanese Becker, Kris J., Cloutis, Edward A., Corre, Lucille Le, Li, Jian-Yang, Reddy, Vishnu, Sanchez, Juan A., Sugita, Seiji, Takir, Driss, Tatsumi, Eri, Thirouin, Audrey +9 morecore +1 more sourceOn the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective
Proceedings of the Japan Academy. Series B, Physical and biological sciences, 2022 Presented here are the observations and interpretations from a comprehensive analysis of 16 representative particles returned from the C-type asteroid Ryugu by the Hayabusa2 mission.Eizo Nakamura, K. Kobayashi, R. Tanaka, T. Kunihiro, Hiroshi Kitagawa, Christian Potiszil, T. Ota, C. Sakaguchi, M. Yamanaka, Dilan M. Ratnayake, Havishk Tripathi, R. Kumar, Maya-Liliana Avramescu, Hidehisa Tsuchida, Yusuke Yachi, H. Miura, M. Abe, R. Fukai, S. Furuya, K. Hatakeda, T. Hayashi, Y. Hitomi, K. Kumagai, Akiko Miyazaki, A. Nakato, M. Nishimura, T. Okada, H. Soejima, S. Sugita, A. Suzuki, T. Usui, T. Yada, D. Yamamoto, K. Yogata, M. Yoshitake, M. Arakawa, A. Fujii, M. Hayakawa, N. Hirata, N. Hirata, R. Honda, C. Honda, S. Hosoda, Y. Iijima, H. Ikeda, M. Ishiguro, Y. Ishihara, T. Iwata, K. Kawahara, S. Kikuchi, K. Kitazato, K. Matsumoto, M. Matsuoka, T. Michikami, Y. Mimasu, Akira Miura, T. Morota, S. Nakazawa, N. Namiki, H. Noda, R. Noguchi, N. Ogawa, K. Ogawa, C. Okamoto, G. Ono, M. Ozaki, T. Saiki, N. Sakatani, H. Sawada, H. Senshu, Y. Shimaki, K. Shirai, Y. Takei, H. Takeuchi, Satoshi Tanaka, E. Tatsumi, F. Terui, R. Tsukizaki, K. Wada, M. Yamada, T. Yamada, Yukio Yamamoto, H. Yano, Y. Yokota, Keisuke Yoshihara, M. Yoshikawa, K. Yoshikawa, Masaki Fujimoto, Sei‐ichiro Watanabe, Y. Tsuda +89 moresemanticscholar +1 more source
