Photometric changes on Saturn's Titan: Evidence for active cryovolcanism

We report infrared spectrophotometric variability on the surface of Saturn's moon Titan detected in images returned by the Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini Saturn Orbiter. The changes were observed at 7°S, 138°W and occurred between October 27, 2005 and Januar...

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Main Authors: Nelson, R, Kamp, L, Lopes, R, Matson, D, Kirk, R, Hapke, B, Wall, S, Boryta, MD, Leader, F, Smythe, W, Mitchell, K, Baines, K, Jaumann, R, Sotin, C, Clark, R, Cruikshank, D, Drossart, P, Lunine, J, Combes, M, Bellucci, G, Bibring, J, Capaccioni, F, Cerroni, P, Coradini, A, Formisano, V
Format: Journal article
Language:English
Published: 2009
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author Nelson, R
Kamp, L
Lopes, R
Matson, D
Kirk, R
Hapke, B
Wall, S
Boryta, MD
Leader, F
Smythe, W
Mitchell, K
Baines, K
Jaumann, R
Sotin, C
Clark, R
Cruikshank, D
Drossart, P
Lunine, J
Combes, M
Bellucci, G
Bibring, J
Capaccioni, F
Cerroni, P
Coradini, A
Formisano, V
author_facet Nelson, R
Kamp, L
Lopes, R
Matson, D
Kirk, R
Hapke, B
Wall, S
Boryta, MD
Leader, F
Smythe, W
Mitchell, K
Baines, K
Jaumann, R
Sotin, C
Clark, R
Cruikshank, D
Drossart, P
Lunine, J
Combes, M
Bellucci, G
Bibring, J
Capaccioni, F
Cerroni, P
Coradini, A
Formisano, V
author_sort Nelson, R
collection OXFORD
description We report infrared spectrophotometric variability on the surface of Saturn's moon Titan detected in images returned by the Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini Saturn Orbiter. The changes were observed at 7°S, 138°W and occurred between October 27, 2005 and January 15, 2006. After that date the surface was unchanged until the most recent observation, March 18, 2006. We previously reported spectrophotometric variability at another location (26°S, 78°W). Cassini Synthetic Aperture RADAR (SAR) images find that the surface morphology at both locations is consistent with surface flows possibly resulting from cryovolcanic activity (Wall et al., companion paper, this issue). The VIMS-reported time variability and SAR morphology results suggest that Titan currently exhibits intermittent surface changes consistent with present ongoing surface processes. We suggest that these processes involve material from Titan's interior being extruded or effiised and deposited on the surface, as might be expected from cryovolcanism. © 2009.
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spelling oxford-uuid:6ae22888-2b99-4a6f-99e0-0ee2bed83d1b2022-03-26T19:00:13ZPhotometric changes on Saturn's Titan: Evidence for active cryovolcanismJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6ae22888-2b99-4a6f-99e0-0ee2bed83d1bEnglishSymplectic Elements at Oxford2009Nelson, RKamp, LLopes, RMatson, DKirk, RHapke, BWall, SBoryta, MDLeader, FSmythe, WMitchell, KBaines, KJaumann, RSotin, CClark, RCruikshank, DDrossart, PLunine, JCombes, MBellucci, GBibring, JCapaccioni, FCerroni, PCoradini, AFormisano, VWe report infrared spectrophotometric variability on the surface of Saturn's moon Titan detected in images returned by the Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini Saturn Orbiter. The changes were observed at 7°S, 138°W and occurred between October 27, 2005 and January 15, 2006. After that date the surface was unchanged until the most recent observation, March 18, 2006. We previously reported spectrophotometric variability at another location (26°S, 78°W). Cassini Synthetic Aperture RADAR (SAR) images find that the surface morphology at both locations is consistent with surface flows possibly resulting from cryovolcanic activity (Wall et al., companion paper, this issue). The VIMS-reported time variability and SAR morphology results suggest that Titan currently exhibits intermittent surface changes consistent with present ongoing surface processes. We suggest that these processes involve material from Titan's interior being extruded or effiised and deposited on the surface, as might be expected from cryovolcanism. © 2009.
spellingShingle Nelson, R
Kamp, L
Lopes, R
Matson, D
Kirk, R
Hapke, B
Wall, S
Boryta, MD
Leader, F
Smythe, W
Mitchell, K
Baines, K
Jaumann, R
Sotin, C
Clark, R
Cruikshank, D
Drossart, P
Lunine, J
Combes, M
Bellucci, G
Bibring, J
Capaccioni, F
Cerroni, P
Coradini, A
Formisano, V
Photometric changes on Saturn's Titan: Evidence for active cryovolcanism
title Photometric changes on Saturn's Titan: Evidence for active cryovolcanism
title_full Photometric changes on Saturn's Titan: Evidence for active cryovolcanism
title_fullStr Photometric changes on Saturn's Titan: Evidence for active cryovolcanism
title_full_unstemmed Photometric changes on Saturn's Titan: Evidence for active cryovolcanism
title_short Photometric changes on Saturn's Titan: Evidence for active cryovolcanism
title_sort photometric changes on saturn s titan evidence for active cryovolcanism
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