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Observations in the Saturn system during approach and orbital insertion, with Cassini's visual and infrared mapping spectrometer

Brown, R. H. and Baines, K. H. and Bellucci, G. and Buratti, B. J. and Capaccioni, F. and Cerroni, P. and Clark, R. N. and Coradini, A. and Cruikshank, D. P. and Drossart, P. and Formisano, V. and Jaumann, R. and Langevin, Y. and Matson, D. L. and McCord, T. B. and Menella, V. and Nelson, R. M. and Nicholson, P. D. and Sicardy, B. and Sotin, C. and Baugh, N. and Griffith, C. A. and Hansen, G. B. and Hibbitts, C. A. and Momary, T. W. and Showalter, M. R. (2006) Observations in the Saturn system during approach and orbital insertion, with Cassini's visual and infrared mapping spectrometer. Astronomy and Astrophysics, 446, pp. 707-716. EDP Sciences. DOI: 10.1051/0004-6361:20053054 ISSN 0004-6361

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Abstract

The Visual and Infrared Mapping Spectrometer observed Phoebe, Iapetus, Titan and Saturn's rings during Cassini's approach and orbital insertion. Phoebe's surface contains water ice, CO<sub>2</sub>, and ferrous iron. Iapetus contains CO<sub>2</sub> and organic materials. Titan's atmosphere shows methane fluorescence, and night-side atmospheric emission that may be CO<sub>2</sub> and CH<sub>3</sub>D. As determined from cloud motions, the winds at altitude 25-30 km in the south polar region of Titan appear to be moving in a prograde direction at velocity ∼1 m s<sup>-1</sup>. Circular albedo features on Titan's surface, seen at 2.02 µm, may be palimpsests remaining from the rheological adjustment of ancient impact craters. As such, their long-term persistence is of special interest in view of the expected precipitation of liquids and solids from the atmosphere. Saturn's rings have changed little in their radial structure since the Voyager flybys in the early 1980s. Spectral absorption bands tentatively attributed to Fe<sup>2+</sup> suggest that iron-bearing silicates are a source of contamination of the C ring and the Cassini Division.

Item URL in elib:https://elib.dlr.de/43882/
Document Type:Article
Title:Observations in the Saturn system during approach and orbital insertion, with Cassini's visual and infrared mapping spectrometer
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Brown, R. H.Department of Planetary Sciences, and Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Baines, K. H.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Bellucci, G.Consiglio Nazionale delle Ricerche, Istituto di Fisica dello Spazio Interplanetario, Roma, ItalyUNSPECIFIED
Buratti, B. J.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Capaccioni, F.Consiglio Nazionale delle Ricerche, Istituto di Astrofisica Spaziale, Roma, ItalyUNSPECIFIED
Cerroni, P.Consiglio Nazionale delle Ricerche, Istituto di Astrofisica Spaziale, Roma, ItalyUNSPECIFIED
Clark, R. N.US Geological Survey, Denver, CO, USAUNSPECIFIED
Coradini, A.Consiglio Nazionale delle Ricerche, Istituto di Astrofisica Spaziale, Roma, ItalyUNSPECIFIED
Cruikshank, D. P.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Drossart, P.Observatoire de Oaris, Meudon, Department de Recherche Spatial, Meudon, FranceUNSPECIFIED
Formisano, V.Consiglio Nazionale delle Ricerche, Istituto di Fisica dello Spazio Interplanetario, Roma, ItalyUNSPECIFIED
Jaumann, R.UNSPECIFIEDUNSPECIFIED
Langevin, Y.Institute d'Astrophysique Spatiale, Université de Paris, Orsay, FranceUNSPECIFIED
Matson, D. L.Consiglio Nazionale delle Ricerche, Istituto di Astrofisica Spaziale, Roma, ItalyUNSPECIFIED
McCord, T. B.Department of Earth and Space Sciences, University of Washington, Seattle, WA, USAUNSPECIFIED
Menella, V.Istituto Nazionale di Astrofisica, Observatorio Astronomico di Capodimonte, Napoli, ItalyUNSPECIFIED
Nelson, R. M.Consiglio Nazionale delle Ricerche, Istituto di Astrofisica Spaziale, Roma, ItalyUNSPECIFIED
Nicholson, P. D.Department of Astronomy, Cornell University, Ithaca, NY, USAUNSPECIFIED
Sicardy, B.Observatoire de Oaris, Meudon, Department de Recherche Spatial, Meudon, FranceUNSPECIFIED
Sotin, C.Laboratoire de Planetologie et Geodynamique, UMR- CNRS, Nantes, FranceUNSPECIFIED
Baugh, N.Department of Planetary Sciences, and Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Griffith, C. A.Department of Planetary Sciences, and Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Hansen, G. B.Department of Earth and Space Sciences, University of Washington, Seattle, WA, USAUNSPECIFIED
Hibbitts, C. A.Department of Earth and Space Sciences, University of Washington, Seattle, WA, USAUNSPECIFIED
Momary, T. W.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Showalter, M. R.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Date:2006
Journal or Publication Title:Astronomy and Astrophysics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:446
DOI :10.1051/0004-6361:20053054
Page Range:pp. 707-716
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:infrared, solar system, Saturn, VIMS
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
Deposited By: Pieth, Susanne
Deposited On:13 Jun 2006
Last Modified:27 Apr 2009 12:56

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