Your browser doesn't support javascript.
loading
The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy.
Kitazato, K; Milliken, R E; Iwata, T; Abe, M; Ohtake, M; Matsuura, S; Arai, T; Nakauchi, Y; Nakamura, T; Matsuoka, M; Senshu, H; Hirata, N; Hiroi, T; Pilorget, C; Brunetto, R; Poulet, F; Riu, L; Bibring, J-P; Takir, D; Domingue, D L; Vilas, F; Barucci, M A; Perna, D; Palomba, E; Galiano, A; Tsumura, K; Osawa, T; Komatsu, M; Nakato, A; Arai, T; Takato, N; Matsunaga, T; Takagi, Y; Matsumoto, K; Kouyama, T; Yokota, Y; Tatsumi, E; Sakatani, N; Yamamoto, Y; Okada, T; Sugita, S; Honda, R; Morota, T; Kameda, S; Sawada, H; Honda, C; Yamada, M; Suzuki, H; Yoshioka, K; Hayakawa, M.
Afiliação
  • Kitazato K; The University of Aizu, Fukushima, Japan. kitazato@u-aizu.ac.jp.
  • Milliken RE; Brown University, Providence, RI, USA.
  • Iwata T; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Abe M; The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan.
  • Ohtake M; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Matsuura S; The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan.
  • Arai T; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Nakauchi Y; The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan.
  • Nakamura T; Kwansei Gakuin University, Hyogo, Japan.
  • Matsuoka M; Ashikaga University, Tochigi, Japan.
  • Senshu H; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Hirata N; Tohoku University, Sendai, Japan.
  • Hiroi T; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Pilorget C; Chiba Institute of Technology, Chiba, Japan.
  • Brunetto R; The University of Aizu, Fukushima, Japan.
  • Poulet F; Brown University, Providence, RI, USA.
  • Riu L; Institut d'Astrophysique Spatial, Université Paris-Sud, Orsay, France.
  • Bibring JP; Institut d'Astrophysique Spatial, Université Paris-Sud, Orsay, France.
  • Takir D; Institut d'Astrophysique Spatial, Université Paris-Sud, Orsay, France.
  • Domingue DL; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Vilas F; Institut d'Astrophysique Spatial, Université Paris-Sud, Orsay, France.
  • Barucci MA; Astromaterials Research and Exploration Science, NASA Johnson Space Center, Houston, TX, USA.
  • Perna D; Planetary Science Institute, Tucson, AZ, USA.
  • Palomba E; Planetary Science Institute, Tucson, AZ, USA.
  • Galiano A; Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon, France.
  • Tsumura K; Osservatorio Astronomico di Roma, Istituto Nazionale di Astrofisica (INAF), Monte Porzio Catone, Italy.
  • Osawa T; Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon, France.
  • Komatsu M; Istituto di Astrofisica e Planetologia Spaziali, INAF, Roma, Italy.
  • Nakato A; Istituto di Astrofisica e Planetologia Spaziali, INAF, Roma, Italy.
  • Arai T; Tohoku University, Sendai, Japan.
  • Takato N; Tokyo City University, Tokyo, Japan.
  • Matsunaga T; Japan Atomic Energy Agency, Ibaraki, Japan.
  • Takagi Y; The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan.
  • Matsumoto K; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Kouyama T; Chiba Institute of Technology, Chiba, Japan.
  • Yokota Y; National Astronomical Observatory of Japan, Tokyo, Japan.
  • Tatsumi E; The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan.
  • Sakatani N; National Institute for Environmental Studies, Ibaraki, Japan.
  • Yamamoto Y; Aichi Toho University, Nagoya, Japan.
  • Okada T; National Astronomical Observatory of Japan, Tokyo, Japan.
  • Sugita S; The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan.
  • Honda R; National Institute of Advanced Industrial Science and Technology, Tokyo, Japan.
  • Morota T; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Kameda S; Kochi University, Kochi, Japan.
  • Sawada H; The University of Tokyo, Tokyo, Japan.
  • Honda C; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Yamada M; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Suzuki H; The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan.
  • Yoshioka K; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Japan.
  • Hayakawa M; The University of Tokyo, Tokyo, Japan.
Science ; 364(6437): 272-275, 2019 04 19.
Article em En | MEDLINE | ID: mdl-30890589
ABSTRACT
The near-Earth asteroid 162173 Ryugu, the target of the Hayabusa2 sample-return mission, is thought to be a primitive carbonaceous object. We report reflectance spectra of Ryugu's surface acquired with the Near-Infrared Spectrometer (NIRS3) on Hayabusa2, to provide direct measurements of the surface composition and geological context for the returned samples. A weak, narrow absorption feature centered at 2.72 micrometers was detected across the entire observed surface, indicating that hydroxyl (OH)-bearing minerals are ubiquitous there. The intensity of the OH feature and low albedo are similar to thermally and/or shock-metamorphosed carbonaceous chondrite meteorites. There are few variations in the OH-band position, which is consistent with Ryugu being a compositionally homogeneous rubble-pile object generated from impact fragments of an undifferentiated aqueously altered parent body.
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Japão
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Japão