Results 31 to 40 of about 2,447 (234)
Ryugu’s Anhydrous Ingredients and Their Spectral Link to Primitive Dust from the Outer Solar System
The Astrophysical Journal Letters, 2023 Ryugu is a second-generation C-type asteroid formed by the reassembly of fragments of a previous larger body in the main asteroid belt. While the majority of Ryugu samples returned by Hayabusa2 are composed of a lithology dominated by aqueously altered ...R. Brunetto, C. Lantz, Y. Fukuda, A. Aléon-Toppani, T. Nakamura, Z. Dionnet, D. Baklouti, F. Borondics, Z. Djouadi, S. Rubino, K. Amano, M. Matsumoto, Y. Fujioka, T. Morita, M. Kukuiri, E. Kagawa, M. Matsuoka, R. Milliken, H. Yurimoto, T. Noguchi, R. Okazaki, H. Yabuta, H. Naraoka, K. Sakamoto, S. Tachibana, T. Yada, M. Nishimura, A. Nakato, A. Miyazaki, K. Yogata, M. Abe, T. Okada, T. Usui, M. Yoshikawa, T. Saiki, S. Tanaka, F. Terui, S. Nakazawa, S. Watanabe, Y. Tsuda +39 moredoaj +1 more sourceRyugu Sample Database System (RS-DBS) on the Data Archives and Transmission System (DARTS) by the JAXA curation
Earth, Planets and Space, 2023 The JAXA Astromaterials Science Research Group developed a web-based database system for the Hayabusa2-returned samples from C-type asteroid Ryugu. The Ryugu Sample Database System database (RS-DBS) is designed as an online catalog for users of wide ...Masahiro Nishimura, Aiko Nakato, Masanao Abe, Kana Nagashima, Hiromichi Soejima, Toru Yada, Kasumi Yogata, Akiko Miyazaki, Kentaro Hatakeda, Miwa Yoshitake, Ayako Iwamae, Cedric Pilorget, Rosario Brunetto, Damien Loizeau, Jean-Pierre Bibring, Lucie Riu, Koki Yumoto, Yuichiro Cho, Yuna Yabe, Seiji Sugita, Motoo Ito, Tatsuaki Okada, Shogo Tachibana, Tomohiro Usui +23 moredoaj +1 more sourceDerivation 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 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 Solar System calcium isotopic composition inferred from Ryugu samples
, 2022 CO CV CM CI Ryugu A Ryugu C 0.0 0.5 1.0 1.5 44/40CaSRM915a (age corrected) The Hayabusa2 spacecraft has returned samples from the Cb-type asteroid (162173) Ryugu to Earth. Previous petrological and chemical analyses support a close link between Ryugu and Onose, M., Tanaka, S., Ireland, T., Nguyen, A., Yamashita, K., Yui, H., Yurimoto, H., Haba, M.K., Usui, T., Paquet, M., Kita, N. T., Haba, M. K., Ireland, T.R., Dai, W., Qin, L., Watanabe, S. -I., Fukai, R., Kleine, T., Aleon, J., Tanaka S, S., Alexander, C., Yin, Q. Z., Walker, R., Nesvorny, D., Davis, A.M., Haba, M., Kita, N., Schoenbaechler, M., Nishimura, M., Huss, G., Alexander, C. M.O.D., Zhang, A. -c., Yin, Q. -Z., Alexander, C.M.O'D, Di Rocco, T., Krot, A. N., Terada, Y., Morita, M., Ichida, K., Kita, N.T., Davis, A., Bajo, K.-I., Nakai, I., Choi, B. -G., Motomura, K., Yogata, K., Miyazaki, A., Noguchi, T., Yoshikawa, M., Huss, G.R., Dauphas, N., Hidaka, H., Krot, A.N., Moynier, F., Chaussidon, M., Yada, T., Liu, M., Abe, M., Russell, S. S., Russell, S.S., Hoppe, P., Krot, A., Walker, R.J., Hu, Y., Zhang, A., Okada, T., Tsuda, Y., Bajo, K. -I., Davis, A. M., Naraoka, H., Yoneda, S., McKeegan, K. D., Choi, B., Choi, B.-G., Okazaki, R., Masuda, Y., Watanabe, S.-I., Moynier, Frédéric, Walker, R. J., Bajo, K. I., Kitajima, K., Komatani, S., Liu, M. C., Nagashima, K., Carlson, R.W., Mckeegan, K.D., Ireland, T. R., Kawasaki, N., Terada, K., Watanabe, S., Terui, F., Sakamoto, K., Russell, S., Ito, M., McKeegan, K., Pack, A., Nakazawa, S., Tafla, L., Homma, H., Bizzarro, M., Sakamoto, N., Yabuta, H., Zhang, A.-C., Wada, S., Saiki, T., Huss, G. R., Bajo, K., Liu, M. -C., Carlson, R., Bouvier, A., Fujiya, W., Ishikawa, A., Amelin, Y., Iizuka, T., Park, C., Itoh, S., Carlson, R. W., Choi, B. G., Watanabe, S. I., Hibiya, Y., Nittler, L., Amari, S., Gautam, I., Yin, Q.-Z., Liu, M.-C., Young, E.D., Yokoyama, T., Nakato, A., Tachibana, S., Young, E., Schönbächler, M., Wadhwa, M., Piani, L., Tang, H., Yin, Q., Zhang, A. C., Alexander, C. M. O'D., Young, E. D., Nakamura, T., Abe, Y. +139 morecore +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 sourceGlobal photometric properties of (162173) Ryugu [PDF]
, 2020 Context. The Hayabusa2 spacecraft launched by Japan Aerospace Exploration Agency has been conducting observations of the asteroid (162173) Ryugu since June 2018. The Telescopic Optical Navigation Camera (ONC-T) onboard Hayabusa2 has obtained thousands of L. Le Corre, M. Yamada, Hirata, N., E. Tatsumi, F. Vilas, Yamada, M., N. Hirata, Kameda, S., Hasegawa, S., Kuroda, D., D. Domingue, Cho, Y., M. Matsuoka, Schröder, Stefan, H. Suzuki, Tatsumi, E., Suzuki, H., R. Honda, T. Koyama, Y. Yokota, Koyama, T., Y. Cho, M. Ishiguro, N. Takato, Honda, R., Yamamoto, Y., S. Schröder, Ishiguro, M., Hiroi, T., Morota, T., T. Hiroi, K. Yoshioka, Matsuoka, M., R. Hemmi, Le Corre, L., Yoshioka, K., M. Abe, T. Morota, Domingue, D. L., C. Honda, Yoshikawa, M., M. Hayakawa, S. Hasegawa, S. Kameda, Hemmi, R., S. Sugita, Abe, M., Hayakawa, M., Vilas, F., Yokota, Y., Y. Yamamoto, Sakatani, N., Takato, N., D. Kuroda, Sugita, S., Honda, C., N. Sakatani, M. Yoshikawa +57 morecore +1 more sourceBennu and Ryugu: diamonds in the sky [PDF]
Granular Matter, 2021 AbstractRapidly spinning and loosely aggregated asteroids appear to take on diamond-shaped profiles, with elevated poles as well as equators. The evolutionary processes that form these characteristic shapes remain a matter of debate. In this paper, we propose a novel model, based on debris accretion, to explain these diamond-shaped profiles.Tapan Sabuwala, Pinaki Chakraborty, Troy Shinbrot +2 moreopenaire +1 more source
