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Rosetta-VIRTIS sees the nucleus of 67P/Churyumov-Gerasimenko: first results from the rendez-vous and nucleus characterisation phase

Capaccioni, F. and Filacchione, G. and Erard, S. and Arnold, Gabriele and Capria, M. T. and Tosi, F. and De Sanctis, M.C. and Ciarniello, M. and Raponi, A. and Formisano, V. and Bockelee-Morvan, D. and Leyrat, C. and Kuehrt, E. and Piccioni, G. and Migliorini, A. and Palomba, E. and Longobardo, A and Frigeri, A. and Ammannito, E. and Markus, Kathrin and Drossart, P. and Flamini, E. and VIRTIS, Science Team (2014) Rosetta-VIRTIS sees the nucleus of 67P/Churyumov-Gerasimenko: first results from the rendez-vous and nucleus characterisation phase. In: 9th European Planetary Science Congress (EPSC), 9, p. 867. European Planetary Science Congress 2014, 07.-12. Sep. 2014, Cascais, Portugal.

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Official URL: http://meetingorganizer.copernicus.org/EPSC2014/EPSC2014-867.pdf


The VIRTIS (Visible, Infrared and Thermal Imaging Spectrometer) spectrometer has observed the nucleus of 67P using its full spectral range extending from 0.25um up to 5um. The spatial sampling has increased from about 500m down to about 15 m, from the second half of July throughout August. Most of the illuminated area has been already mapped, albeit at variable surface resolution, and more than 0.5million spectra have been acquired, in the period mid July – mid August. Extensive coverage of the diurnal temperature cycle, necessary to derive thermophysical properties of the surface, has been achieved for most of the observed regions, and in particular for those selected as potential landing sites. Temperatures as large as 230K have been measured across the nucleus surface which, along with the lack (so far) of detection of absorption features of water ice in the spectral infrared range, indicate a porous, highly insulating surface material and corresponding low thermal inertia. The spectra observed until now do not display clear evidence for absorption features in the VIS or IR ranges, although the work at the highest spatial resolution has only just started. The talk shall describe the major results obtained so far on a global scale and will give some details on the derived properties of the 5 selected landing sites.

Item URL in elib:https://elib.dlr.de/92299/
Document Type:Conference or Workshop Item (Speech)
Title:Rosetta-VIRTIS sees the nucleus of 67P/Churyumov-Gerasimenko: first results from the rendez-vous and nucleus characterisation phase
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Filacchione, G.INAF-IASF, Rome, ItalyUNSPECIFIED
Arnold, GabrieleGabriele.Arnold (at) dlr.deUNSPECIFIED
Capria, M. T.Instituto di Astrofisica Spaziale e Fisica Cosmica, Roma, ItalyUNSPECIFIED
Tosi, F.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
De Sanctis, M.C.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
Formisano, V.Istituto Fisica Spazio Interplanetario, CNR, Roma, ItalyUNSPECIFIED
Bockelee-Morvan, D.Observatoire de Paris, MeudonUNSPECIFIED
Kuehrt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Palomba, E.Institute for Interplanetary Space Physics - INAF, Rome, ItalyUNSPECIFIED
Longobardo, AINAF-LAPS, Via del Fosso del Cavaliere 100, I-00133 Rome, ItalyUNSPECIFIED
Frigeri, A.National Institute of Astrophysics, Rome, ItalyUNSPECIFIED
Ammannito, E.INAF, Istituto di Fisica Dello Spazio Interplanetario, Roma, ItalyUNSPECIFIED
Markus, KathrinWestfälische Wilhelms-Universität MünsterUNSPECIFIED
Drossart, P.Observatoire de Paris, Meudon, FranceUNSPECIFIED
Flamini, E.ASI, Agenzia Spaziale Italiana, viale Liegi 26, 00198 Rome, Italy; Lunar and Planetary Laboratory and Steward Observatory, University of Arizona, Tucson, AZ 85721, USAUNSPECIFIED
Date:8 September 2014
Journal or Publication Title:9th European Planetary Science Congress (EPSC)
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 867
Series Name:EPSC Abstracts
Keywords:Rosetta, VIRTIS, 67P/Churyumov-Gerasimenko, Nucleus
Event Title:European Planetary Science Congress 2014
Event Location:Cascais, Portugal
Event Type:international Conference
Event Dates:07.-12. Sep. 2014
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 > Planetary Physics
Institute of Planetary Research > Asteroids and Comets
Deposited By: Kappel, David
Deposited On:24 Nov 2014 08:04
Last Modified:31 Jul 2019 19:49

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