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Reflectance spectra of solid organic acids and their mixtures with Fe-sulfide pyrrhotite: Insights into the surface composition of comet 67P/CG

Meißner, X. and Moroz, L. and Arnold, Gabriele and Rademann, K. (2018) Reflectance spectra of solid organic acids and their mixtures with Fe-sulfide pyrrhotite: Insights into the surface composition of comet 67P/CG. Copernicus Press. European Planetary Science Congress, 12, 16 - 21 Sep 2018, Berlin, Germany.

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Official URL: https://meetingorganizer.copernicus.org/EPSC2018/EPSC2018-116.pdf

Abstract

We present 0.3-17 µm reflectance spectra of different solid organic acids (including amino acids) and their fine-grained intimate mixtures with pyrrhotite (Fe1-xS), a Fe-sulfide. These data provide a valuable basis for compositional interpretation of remote sensing spectra of the comet 67P/CG’s surface. In particular, we investigate the ability of an opaque Fe-sulfide to suppress absorption bands of organic acids and to modify key spectral parameters such as contrasts, widths, shapes of absorption bands and continuum slopes. Finally, we compare our results to the VIRTIS/Rosetta spectra of comet 67P surface in order to assess the possible contribution of carboxylic O-H vibrations to the broad complex 3.2-µm absorption band in the comet spectra.

Item URL in elib:https://elib.dlr.de/126038/
Document Type:Conference or Workshop Item (Speech)
Title:Reflectance spectra of solid organic acids and their mixtures with Fe-sulfide pyrrhotite: Insights into the surface composition of comet 67P/CG
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Meißner, X.Humboldt-Universität zu Berlin, Berlin, GermanyUNSPECIFIED
Moroz, L.Universität Potsdam, Potsdam, Germany; German Aerospace Center (DLR), Berlin, GermanyUNSPECIFIED
Arnold, GabrieleGabriele.Arnold (at) dlr.deUNSPECIFIED
Rademann, K.Humboldt-Universität zu Berlin, Berlin, GermanyUNSPECIFIED
Date:September 2018
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:12
Editors:
EditorsEmail
De Sanctis, M.C.INAF, Rome, Italy
Publisher:Copernicus Press
Series Name:EPSC Abstracts
Status:Published
Keywords:comets, 67P, Rosetta, laboratory spectrosocy
Event Title:European Planetary Science Congress, 12
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:16 - 21 Sep 2018
Organizer:Copernicus Meetings
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
Deposited By: Arnold, Dr. Gabriele
Deposited On:18 Jan 2019 11:39
Last Modified:31 Jul 2019 20:23

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