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Transient water ice on comet 67P/Churyumov-Gerasimenko

De Sanctis, M.C. and Capaccioni, F. and Filacchione, G. and Ciarnello, M. and Raponi, A. and Formisano, M. and Tosi, F. and Schmitt, B. and Arnold, Gabriele and Kührt, E. and Mottola, S. and Ammannito, E. and Beck, P. and Bockelee-Morvan, D. and Capria, M. T. and Combi, M. and Erard, S. and Ip, W-H. and Leyrat, C. and McCord, Thomas B. and Quirico, E. and Stephan, K. and Jaumann, R. and Fonti, S. (2015) Transient water ice on comet 67P/Churyumov-Gerasimenko. In: 10th European Planetary Science Congress (EPSC), 10, p. 97. European Planetary Science Congress 2015, 27 Sep - 02 Oct 2015, Nantes, France.

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Official URL: http://meetingorganizer.copernicus.org/EPSC2015/EPSC2015-97.pdf

Abstract

Ice has been observed on other cometary surfaces as patches of pure ice mixed with the non-ice component of the surface. In case of comet 9P/Tempel 1, these ice patches were not directly linked with the comet gas activity and the main sources of gases were indicated in the comet interior. On comet 67P, VIRTIS observes surface ice mixed with a non-ice organic rich component, in a region were the localized water activity occurs. Moreover, the ice signature is variable with time and illumination conditions suggesting a cyclic process of sublimation-condensation of water ice on the comet surface. The cyclic replenishment of ice, due to the light/dark changes, in the first comet layers can be the key for the strong local activity seen from the comet neck.

Item URL in elib:https://elib.dlr.de/100879/
Document Type:Conference or Workshop Item (Speech)
Title:Transient water ice on comet 67P/Churyumov-Gerasimenko
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
De Sanctis, M.C.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
Capaccioni, F.INAF-IASF, italyUNSPECIFIED
Filacchione, G.INAF-IASF, Rome, ItalyUNSPECIFIED
Ciarnello, M.INAF-IASF, ItalyUNSPECIFIED
Raponi, A.INAF-IASF, ItalyUNSPECIFIED
Formisano, M.INAF-IASF, ItalyUNSPECIFIED
Tosi, F.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Schmitt, B.Grenoble Planetology LaboratoryUNSPECIFIED
Arnold, GabrieleGabriele.Arnold (at) dlr.deUNSPECIFIED
Kührt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Mottola, S.stefano.mottola (at) dlr.deUNSPECIFIED
Ammannito, E.INAF, Istituto di Fisica Dello Spazio Interplanetario, Roma, ItalyUNSPECIFIED
Beck, P.University Joseph Fourier Grenoble, Grenoble, FranceUNSPECIFIED
Bockelee-Morvan, D.Observatoire de Paris, MeudonUNSPECIFIED
Capria, M. T.Instituto di Astrofisica Spaziale e Fisica Cosmica, Roma, ItalyUNSPECIFIED
Combi, M.Space Physics Research Laboratory, The University of Michigan, Ann Arbor, USAUNSPECIFIED
Erard, S.LESIAUNSPECIFIED
Ip, W-H.Institute for Space Science, National Central University, Chung Li, TaiwanUNSPECIFIED
Leyrat, C.LESIAUNSPECIFIED
McCord, Thomas B.Bear Fight Institute, Winthrop, WA, United States.UNSPECIFIED
Quirico, E.Laboratory of Planetology, CNRS Joseph Fourier UniversityUNSPECIFIED
Stephan, K.katrin.stephan (at) dlr.deUNSPECIFIED
Jaumann, R.ralf.jaumann (at) dlr.deUNSPECIFIED
Fonti, S.Dipartimento di Fisica, Università di Lecce, ItalyUNSPECIFIED
Date:29 September 2015
Journal or Publication Title:10th European Planetary Science Congress (EPSC)
Refereed publication:No
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Volume:10
Page Range:p. 97
Series Name:EPSC Abstracts
Status:Published
Keywords:VIRTIS, Rosetta, 67P, water ice
Event Title:European Planetary Science Congress 2015
Event Location:Nantes, France
Event Type:international Conference
Event Dates:27 Sep - 02 Oct 2015
Organizer:Europlanet
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt ROSETTA Instrumente
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Institute of Planetary Research > Leitungsbereich PF
Institute of Planetary Research > Planetary Geology
Deposited By: Kappel, David
Deposited On:14 Dec 2015 14:01
Last Modified:14 Dec 2015 14:01

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