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The International ISSI Team "Comet 67P/Churyumov-Gerasimenko Surface Composition as a Playground for Radiative Transfer Modeling and Laboratory Measurements"

Ciarniello, M. and Beck, P. and Filacchione, G. and Moroz, Liubov and Pilorget, C. and Pommerol, Antoine and Quirico, E. and Raponi, A. and Schröder, Stefan and Vinogradoff, V. and Kappel, David and Istiqomah, Istiqomah and Rousseau, Batiste and Mennella, V. (2018) The International ISSI Team "Comet 67P/Churyumov-Gerasimenko Surface Composition as a Playground for Radiative Transfer Modeling and Laboratory Measurements". In: Lunar and Planetary Science, p. 1467. 49th Lunar and Planetary Science Conference (2018), 19 Mar - 23 Mar 2018, The Woodlands, Texas.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2018/pdf/1467.pdf

Abstract

The Rosetta mission provided unprecedented information about 67P/Churyumov-Gerasimenko (hereafter 67P/C-G) nucleus properties and evolution along its orbit around the Sun. The composition of cometary nuclei is considered as representative of the composition of the outer regions of the early solar nebula and is a direct proxy to constrain the physical conditions of the early phases of the Solar System. Remote sensing observations at visible-infrared (VIS-IR) wavelengths of the nucleus of comet 67P/C-G performed by VIRTIS and OSIRIS aboard the Rosetta mission have revealed a surface ubiquitously covered by low-albedo material, characterized by the presence of refractory and semi-volatile organics and dark opaque phases. However, a quantitative determination of the physical properties (grain size, porosity) and chemical composition of the surface regolith, from spectrophotometric analysis, is still missing. The surface composition of 67P/C-G will be investigated within an international team hosted by ISSI (International Space Science Institute, Bern, CH), taking advantage of available and dedicated laboratory reflectance measurements of cometary analogue samples and radiative transfer models. The convergence between models and measurements will allow us to provide a thorough characterization of 67P/C-G surface. At the same time, the comparison of theoretical predictions with results from laboratory reflectance spectroscopy on powders of analogue materials give us the possibility to constrain the capability of the radiative transfer models to characterize sample composition (endmember abundances and mixing modalities) and physical properties.

Item URL in elib:https://elib.dlr.de/124840/
Document Type:Conference or Workshop Item (Poster)
Title:The International ISSI Team "Comet 67P/Churyumov-Gerasimenko Surface Composition as a Playground for Radiative Transfer Modeling and Laboratory Measurements"
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ciarniello, M.INAF-IASF, ItalyUNSPECIFIED
Beck, P.Laboratoire de Planétologie de Grenoble (LPG) - University Joseph Fourier Grenoble, Grenboble, FranceUNSPECIFIED
Filacchione, G.INAF-IASF, Rome, ItalyUNSPECIFIED
Moroz, LiubovLjuba.Moroz (at) dlr.deUNSPECIFIED
Pilorget, C.Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, FranceUNSPECIFIED
Pommerol, AntoinePhysikalisches Institut, Sidlerstrasse 5, University of Bern, 3012, Bern, SwitzerlandUNSPECIFIED
Quirico, E.Laboratory of Planetology, CNRS Joseph Fourier UniversityUNSPECIFIED
Raponi, A.INAF-IASF, ItalyUNSPECIFIED
Schröder, StefanStefanus.Schroeder (at) dlr.dehttps://orcid.org/0000-0003-0323-8324
Vinogradoff, V.INAF-IASF, ItalyUNSPECIFIED
Kappel, DavidDavid.Kappel (at) dlr.dehttps://orcid.org/0000-0002-0518-5548
Istiqomah, IstiqomahLaboratoire de Planétologie de Grenoble (LPG) - University Joseph Fourier Grenoble, Grenboble, FranceUNSPECIFIED
Rousseau, BatisteLESIAUNSPECIFIED
Mennella, V.INAF-OAC, Napoli, ItalyUNSPECIFIED
Date:22 March 2018
Journal or Publication Title:Lunar and Planetary Science
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 1467
Status:Published
Keywords:VIRTIS, Rosetta, 67P, radiative transfer, composition
Event Title:49th Lunar and Planetary Science Conference (2018)
Event Location:The Woodlands, Texas
Event Type:international Conference
Event Dates:19 Mar - 23 Mar 2018
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 > Leitungsbereich PF
Institute of Planetary Research > Planetary Geology
Institute of Planetary Research > Asteroids and Comets
Deposited By: Kappel, David
Deposited On:12 Dec 2018 12:04
Last Modified:31 Jul 2019 20:22

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