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Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth.
Tachibana, S; Sawada, H; Okazaki, R; Takano, Y; Sakamoto, K; Miura, Y N; Okamoto, C; Yano, H; Yamanouchi, S; Michel, P; Zhang, Y; Schwartz, S; Thuillet, F; Yurimoto, H; Nakamura, T; Noguchi, T; Yabuta, H; Naraoka, H; Tsuchiyama, A; Imae, N; Kurosawa, K; Nakamura, A M; Ogawa, K; Sugita, S; Morota, T; Honda, R; Kameda, S; Tatsumi, E; Cho, Y; Yoshioka, K; Yokota, Y; Hayakawa, M; Matsuoka, M; Sakatani, N; Yamada, M; Kouyama, T; Suzuki, H; Honda, C; Yoshimitsu, T; Kubota, T; Demura, H; Yada, T; Nishimura, M; Yogata, K; Nakato, A; Yoshitake, M; Suzuki, A I; Furuya, S; Hatakeda, K; Miyazaki, A.
Afiliación
  • Tachibana S; UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Sawada H; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Okazaki R; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Takano Y; Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan.
  • Sakamoto K; Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, Kanagawa 237-0061, Japan.
  • Miura YN; UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Okamoto C; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Yano H; Earthquake Research Institute, The University of Tokyo, Tokyo 113-0032, Japan.
  • Yamanouchi S; Department of Planetology, Kobe University, Kobe 657-8501, Japan.
  • Michel P; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Zhang Y; Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan.
  • Schwartz S; Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France.
  • Thuillet F; Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France.
  • Yurimoto H; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA.
  • Nakamura T; Planetary Science Institute, Tucson, AZ 85719, USA.
  • Noguchi T; Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France.
  • Yabuta H; Department of Earth and Planetary Sciences, Hokkaido University, Sapporo 060-0810, Japan.
  • Naraoka H; Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan.
  • Tsuchiyama A; Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan.
  • Imae N; Division of Earth and Planetary Sciences, Kyoto University, Kyoto, Japan.
  • Kurosawa K; Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan.
  • Nakamura AM; Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan.
  • Ogawa K; Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.
  • Sugita S; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
  • Morota T; Polar Science Resources Center, National Institute of Polar Research, Tokyo 190-8518, Japan.
  • Honda R; Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.
  • Kameda S; Department of Planetology, Kobe University, Kobe 657-8501, Japan.
  • Tatsumi E; JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan.
  • Cho Y; UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Yoshioka K; UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Yokota Y; Department of Information Science, Kochi University, Kochi 780-8520, Japan.
  • Hayakawa M; Department of Physics, Rikkyo University, Tokyo 171-8501, Japan.
  • Matsuoka M; UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Sakatani N; Instituto de Astrofísica de Canarias, University of La Laguna, E-38205 Tenerife, Spain.
  • Yamada M; UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Kouyama T; UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Suzuki H; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Honda C; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Yoshimitsu T; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Kubota T; Department of Physics, Rikkyo University, Tokyo 171-8501, Japan.
  • Demura H; Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.
  • Yada T; Information Technology and Human Factors, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan.
  • Nishimura M; Department of Physics, Meiji University, Kawasaki 214-8571, Japan.
  • Yogata K; Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan.
  • Nakato A; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Yoshitake M; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Suzuki AI; Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan.
  • Furuya S; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Hatakeda K; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
  • Miyazaki A; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.
Science ; 375(6584): 1011-1016, 2022 03 04.
Article en En | MEDLINE | ID: mdl-35143255
ABSTRACT
The Hayabusa2 spacecraft investigated the C-type (carbonaceous) asteroid (162173) Ryugu. The mission performed two landing operations to collect samples of surface and subsurface material, the latter exposed by an artificial impact. We present images of the second touchdown site, finding that ejecta from the impact crater was present at the sample location. Surface pebbles at both landing sites show morphological variations ranging from rugged to smooth, similar to Ryugu's boulders, and shapes from quasi-spherical to flattened. The samples were returned to Earth on 6 December 2020. We describe the morphology of >5 grams of returned pebbles and sand. Their diverse color, shape, and structure are consistent with the observed materials of Ryugu; we conclude that they are a representative sample of the asteroid.
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Science Año: 2022 Tipo del documento: Article País de afiliación: Japón
Texto completo
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XML
PubMed Links
Buscar en Google

Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Science Año: 2022 Tipo del documento: Article País de afiliación: Japón