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Evidence for widespread hydrated minerals on asteroid (101955) Bennu.
Hamilton, V E; Simon, A A; Christensen, P R; Reuter, D C; Clark, B E; Barucci, M A; Bowles, N E; Boynton, W V; Brucato, J R; Cloutis, E A; Connolly, H C; Hanna, K L Donaldson; Emery, J P; Enos, H L; Fornasier, S; Haberle, C W; Hanna, R D; Howell, E S; Kaplan, H H; Keller, L P; Lantz, C; Li, J-Y; Lim, L F; McCoy, T J; Merlin, F; Nolan, M C; Praet, A; Rozitis, B; Sandford, S A; Schrader, D L; Thomas, C A; Zou, X-D; Lauretta, D S.
Afiliação
  • Hamilton VE; Department of Space Studies, Southwest Research Institute, Boulder, CO, USA.
  • Simon AA; NASA Goddard Space Flight Center, Greenbelt, MD, USA.
  • Christensen PR; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA.
  • Reuter DC; NASA Goddard Space Flight Center, Greenbelt, MD, USA.
  • Clark BE; Department of Physics and Astronomy, Ithaca College, Ithaca, NY, USA.
  • Barucci MA; LESIA, Observatoire de Paris, France.
  • Bowles NE; Department of Atmospheric, Oceanic and Planetary Physics, University of Oxford, Oxford, UK.
  • Boynton WV; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Brucato JR; INAF-Astrophysical Observatory of Arcetri, Firenze, Italy.
  • Cloutis EA; Department of Geography, University of Winnipeg, Winnipeg, Canada.
  • Connolly HC; Department of Geology, Rowan University, Glassboro, NJ, USA.
  • Hanna KLD; Department of Atmospheric, Oceanic and Planetary Physics, University of Oxford, Oxford, UK.
  • Emery JP; Department of Earth and Planetary Science, University of Tennessee, Knoxville, TN, USA.
  • Enos HL; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Fornasier S; LESIA, Observatoire de Paris, France.
  • Haberle CW; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA.
  • Hanna RD; Jackson School of Geosciences, University of Texas, Austin, TX, USA.
  • Howell ES; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Kaplan HH; Department of Space Studies, Southwest Research Institute, Boulder, CO, USA.
  • Keller LP; ARES, NASA Johnson Space Center, Houston, TX USA.
  • Lantz C; Institut d'Astrophysique Spatiale, CNRS/Université Paris Sud, Orsay, France.
  • Li JY; Planetary Science Institute, Tucson, AZ, USA.
  • Lim LF; NASA Goddard Space Flight Center, Greenbelt, MD, USA.
  • McCoy TJ; Smithsonian Institution, National Museum of Natural History, Washington, D.C., USA.
  • Merlin F; LESIA, Observatoire de Paris, France.
  • Nolan MC; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Praet A; LESIA, Observatoire de Paris, France.
  • Rozitis B; Planetary and Space Sciences, The Open University, Milton Keynes, UK.
  • Sandford SA; NASA Ames Research Center, Moffett Field, CA, USA.
  • Schrader DL; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA.
  • Thomas CA; Department of Physics and Astronomy, Northern Arizona University, Flagstaff, AZ, USA.
  • Zou XD; Planetary Science Institute, Tucson, AZ, USA.
  • Lauretta DS; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
Nat Astron ; 3(4): 332-340, 2019.
Article em En | MEDLINE | ID: mdl-31360777
ABSTRACT
Early spectral data from the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission reveal evidence for abundant hydrated minerals on the surface of near-Earth asteroid (101955) Bennu in the form of a near-infrared absorption near 2.7 µm and thermal infrared spectral features that are most similar to those of aqueously altered CM carbonaceous chondrites. We observe these spectral features across the surface of Bennu, and there is no evidence of substantial rotational variability at the spatial scales of tens to hundreds of meters observed to date. In the visible and near-infrared (0.4 to 2.4 µm) Bennu's spectrum appears featureless and with a blue (negative) slope, confirming previous ground-based observations. Bennu may represent a class of objects that could have brought volatiles and organic chemistry to Earth.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article