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Unravelling thermal emissivity spectra of the main minerals on Mercury’s surface by comparison with ab initio calculated IR-HT vibrational frequencies

Stangarone, Claudia and Helbert, Jörn and Tribaudino, Mario and Maturilli, Alessandro and D'Amore, M. and Ferrari, Sabrina and Prencipe, Mauro (2015) Unravelling thermal emissivity spectra of the main minerals on Mercury’s surface by comparison with ab initio calculated IR-HT vibrational frequencies. AGU Fall Meeting, 14-18 December 2015, San Francisco.

Full text not available from this repository.

Abstract

Spectral signatures of minerals are intimately related to the crystal structure; therefore they may represent a remote sensing model to determine surface composition of planetary bodies, by analysing their spectral reflectance and emission. However, one of the most critical point is data interpretation considering planetary surfaces, as Mercury, where the changes in spectral characteristics are induced by the high temperatures conditions (Helbert et al., 2013). The aim of this work is to interpret the experimental thermal emissivity spectra with an innovative approach: simulating IR spectra of the main mineral families that compose the surface of Mercury, focusing on pyroxenes (Sprague et al., 2002), both at room and high temperature, exploiting the accuracy of ab initio quantum mechanical calculations, by means of CRYSTAL14 code (Dovesi et al., 2014). The simulations will be compared with experimental emissivity measurements of planetary analogue samples at temperature up to 1000K, performed at Planetary Emissivity Laboratory (PEL) by Institute of Planetary Research (DLR, Berlin). Results will be useful to create a theoretical background to interpret HT-IR emissivity spectra that will be collected by the Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS), a spectrometer developed by DLR that will be on board of the ESA BepiColombo Mercury Planetary Orbiter (MPO) scheduled for 2017. The goal is to point out the most interesting spectral features for a geological mapping of Mercury and other rocky bodies, simulating the environmental conditions of the inner planets of Solar System.

Item URL in elib:https://elib.dlr.de/101705/
Document Type:Conference or Workshop Item (Poster)
Title:Unravelling thermal emissivity spectra of the main minerals on Mercury’s surface by comparison with ab initio calculated IR-HT vibrational frequencies
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stangarone, ClaudiaUniversity of ParmaUNSPECIFIED
Helbert, JörnJoern.Helbert (at) dlr.dehttps://orcid.org/0000-0001-5346-9505
Tribaudino, MarioUniversity of ParmaUNSPECIFIED
Maturilli, AlessandroAlessandro.Maturilli (at) dlr.deUNSPECIFIED
D'Amore, M.mario.damore (at) dlr.deUNSPECIFIED
Ferrari, Sabrinasabrina.ferrari (at) dlr.deUNSPECIFIED
Prencipe, MauroUniversity of TurinUNSPECIFIED
Date:18 December 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Mercury, Emissivity, Ab-initio
Event Title:AGU Fall Meeting
Event Location:San Francisco
Event Type:international Conference
Event Dates:14-18 December 2015
Organizer:AGU
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 - Vorhaben BepiColombo (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Maturilli, Alessandro
Deposited On:06 Jan 2016 14:02
Last Modified:01 Dec 2018 19:51

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