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Close Cassini flybys of Saturn's ring moons Pan, Daphnis, Atlas, Pandora, and Epimetheus.
Buratti, B J; Thomas, P C; Roussos, E; Howett, C; Seiß, M; Hendrix, A R; Helfenstein, P; Brown, R H; Clark, R N; Denk, T; Filacchione, G; Hoffmann, H; Jones, G H; Khawaja, N; Kollmann, P; Krupp, N; Lunine, J; Momary, T W; Paranicas, C; Postberg, F; Sachse, M; Spahn, F; Spencer, J; Srama, R; Albin, T; Baines, K H; Ciarniello, M; Economou, T; Hsu, H-W; Kempf, S; Krimigis, S M; Mitchell, D; Moragas-Klostermeyer, G; Nicholson, P D; Porco, C C; Rosenberg, H; Simolka, J; Soderblom, L A.
Afiliación
  • Buratti BJ; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. bonnie.buratti@jpl.nasa.gov.
  • Thomas PC; Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA.
  • Roussos E; Max Planck Institute for Solar System Research, 37077 Göttingen, Germany.
  • Howett C; Southwest Research Institute, Boulder, CO 80302, USA.
  • Seiß M; Department of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany.
  • Hendrix AR; Planetary Sciences Institute, Tucson, AZ 85719, USA.
  • Helfenstein P; Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA.
  • Brown RH; Lunar and Planetary Lab, University of Arizona, Tucson, AZ 85721, USA.
  • Clark RN; Planetary Sciences Institute, Tucson, AZ 85719, USA.
  • Denk T; Institute of Geological Sciences, Freie Universität Berlin, 12249 Berlin, Germany.
  • Filacchione G; Istituto Nazionale di Astrofisica, Rome, Italy.
  • Hoffmann H; Department of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany.
  • Jones GH; University College London, London, UK.
  • Khawaja N; Institute of Geological Sciences, Freie Universität Berlin, 12249 Berlin, Germany.
  • Kollmann P; Institute of Earth Sciences, University of Heidelberg, 69120 Heidelberg, Germany.
  • Krupp N; Institute of Earth Sciences, University of Heidelberg, 69120 Heidelberg, Germany.
  • Lunine J; Max Planck Institute for Solar System Research, 37077 Göttingen, Germany.
  • Momary TW; Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA.
  • Paranicas C; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
  • Postberg F; Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723, USA.
  • Sachse M; Institute of Geological Sciences, Freie Universität Berlin, 12249 Berlin, Germany.
  • Spahn F; Institute of Earth Sciences, University of Heidelberg, 69120 Heidelberg, Germany.
  • Spencer J; Department of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany.
  • Srama R; Department of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany.
  • Albin T; Southwest Research Institute, Boulder, CO 80302, USA.
  • Baines KH; University of Stuttgart, 70569 Stuttgart, Germany.
  • Ciarniello M; University of Stuttgart, 70569 Stuttgart, Germany.
  • Economou T; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
  • Hsu HW; Istituto Nazionale di Astrofisica, Rome, Italy.
  • Kempf S; Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA.
  • Krimigis SM; Physics Department, University of Colorado, Boulder, CO 80303, USA.
  • Mitchell D; Physics Department, University of Colorado, Boulder, CO 80303, USA.
  • Moragas-Klostermeyer G; Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723, USA.
  • Nicholson PD; Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723, USA.
  • Porco CC; University of Stuttgart, 70569 Stuttgart, Germany.
  • Rosenberg H; Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA.
  • Simolka J; Space Sciences Institute, Boulder, CO 80301, USA, and Department of Astronomy, University of California, Berkeley, CA 94720, USA.
  • Soderblom LA; Institute of Geological Sciences, Freie Universität Berlin, 12249 Berlin, Germany.
Science ; 364(6445)2019 06 14.
Article en En | MEDLINE | ID: mdl-30923171
ABSTRACT
Saturn's main ring system is associated with a set of small moons that either are embedded within it or interact with the rings to alter their shape and composition. Five close flybys of the moons Pan, Daphnis, Atlas, Pandora, and Epimetheus were performed between December 2016 and April 2017 during the ring-grazing orbits of the Cassini mission. Data on the moons' morphology, structure, particle environment, and composition were returned, along with images in the ultraviolet and thermal infrared. We find that the optical properties of the moons' surfaces are determined by two competing processes contamination by a red material formed in Saturn's main ring system and accretion of bright icy particles or water vapor from volcanic plumes originating on the moon Enceladus.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2019 Tipo del documento: Article
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2019 Tipo del documento: Article