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Surface composition of Hyperion

Cruikshank, D.P. and Dalton, J.B. and Dalle Ore, C.M. and Bauer, J. and Stephan, K. and Filacchione, G. and Hendrix, C.J. and Hansen, C.J. and Coradini, A. and Cerroni, P. and Tosi, F. and Capaccioni, F. and Jaumann, R. and Buratti, B.J. and Clark, R.N. and Brown, R.H. and Nelson, R.M. and McCord, T.B. and Baines, K.H. and Nicholson, P.D. and Sotin, C. and Meyer, A.W. and Bellucci, G. and Combes, M. and Bibring, J.-P. and Langevin, Y. and Sicardy, B. and Matson, D.L. and Formisano, V. and Drossart, P. and Menella, V. (2007) Surface composition of Hyperion. Nature, 448, pp. 54-57. Nature Publishing Group. DOI: 10.1038/nature05948

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Abstract

Hyperion, Saturn's eighth largest icy satellite, is a body of irregular shape in a state of chaotic rotation. The surface is segregated into two distinct units. A spatially dominant high-albedo unit having the strong signature of H2O ice contrasts with a unit that is about a factor of four lower in albedo and is found mostly in the bottoms of cup-like craters. Here we report observations of Hyperion's surface in the ultraviolet and near-infrared spectral regions with two optical remote sensing instruments on the Cassini spacecraft at closest approach during a fly-by on 25–26 September 2005. The close fly-by afforded us the opportunity to obtain separate reflectance spectra of the high- and low-albedo surface components. The low-albedo material has spectral similarities and compositional signatures that link it with the surface of Phoebe and a hemisphere-wide superficial coating on Iapetus.

Item URL in elib:https://elib.dlr.de/50345/
Document Type:Article
Title:Surface composition of Hyperion
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Cruikshank, D.P.NASA Ames Research Center, Astrophysics Branch Moffett FieldUNSPECIFIED
Dalton, J.B.SETI Institute, Mountain View, CA, USAUNSPECIFIED
Dalle Ore, C.M.SETI Institute, Mountain View, CA, USAUNSPECIFIED
Bauer, J.JPL, California Institute of Technology, Pasadena, USAUNSPECIFIED
Stephan, K.UNSPECIFIEDUNSPECIFIED
Filacchione, G.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Hendrix, C.J.JPL, California Institute of Technology, Pasadena, USAUNSPECIFIED
Hansen, C.J.JPL, California Institute of Technology, Pasadena, USAUNSPECIFIED
Coradini, A.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Cerroni, P.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Tosi, F.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Capaccioni, F.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Jaumann, R.UNSPECIFIEDUNSPECIFIED
Buratti, B.J.JPL, California Institute of Technology, Pasadena, USAUNSPECIFIED
Clark, R.N.USGS, Denver Federal Center, Colorado, USAUNSPECIFIED
Brown, R.H.Lunar and Planetary Laboratory and Steward observatory, University of Arizona, TucsonUNSPECIFIED
Nelson, R.M.JPL, California Institute of Technology, Pasadena, USAUNSPECIFIED
McCord, T.B.Space Science Institute NW, Winthrop, Washington, USAUNSPECIFIED
Baines, K.H.JPL, California Institute of Technology, Pasadena, USAUNSPECIFIED
Nicholson, P.D.Cornell universsity, Ithaca, NY, USAUNSPECIFIED
Sotin, C.University of nantes, Nantes Cedex, FranceUNSPECIFIED
Meyer, A.W.USRA/SOFIA, Nasa Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Bellucci, G.INAF-IASF, Roma, ItalyUNSPECIFIED
Combes, M.Observatoire de Paris-Meudon, Dept. Recherche Spatial, Meudon Cedex, FranceUNSPECIFIED
Bibring, J.-P.Université de Paris Sud-Orsay, Institut d'Astrophysique Spatial, Orsay Cedex, FranceUNSPECIFIED
Langevin, Y.Université de Paris Sud-Orsay, Institut d'Astrophysique Spatial, Orsay Cedex, FranceUNSPECIFIED
Sicardy, B.Observatoire de Paris-Meudon, Dept. Recherche Spatial, Meudon Cedex, FranceUNSPECIFIED
Matson, D.L.JPL, California Institute of Technology, Pasadena, USAUNSPECIFIED
Formisano, V.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Drossart, P.Observatoire de Paris-Meudon, Dept. Recherche Spatial, Meudon Cedex, FranceUNSPECIFIED
Menella, V.INAF-OAC, Napoli, ItalyUNSPECIFIED
Date:5 July 2007
Journal or Publication Title:Nature
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:448
DOI :10.1038/nature05948
Page Range:pp. 54-57
Publisher:Nature Publishing Group
Status:Published
Keywords:Cassini, VIMS, Icy Satellites, Hyperion
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben CASSINI (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Vogt, Irene
Deposited On:21 Aug 2007
Last Modified:27 Apr 2009 14:09

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