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Laboratory studies of Mercury analogue materials: optical spectroscopy and space weathering simulation experiments

Moroz, L. and Helbert, J. and Maturilli, A. and Sasaki, S. and Bischoff, A. (2008) Laboratory studies of Mercury analogue materials: optical spectroscopy and space weathering simulation experiments. In: COSPAR Abstracts, 37, p. 2110. 37th COSPAR Scientific Assembly, 2008-07-13 - 2008-07-20, Montréal (Canada).

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MERTIS (Mercury Thermal Infrared Imaging Spectrometer) is a part of ESA's BepiColombo mission payload and will map Mercury's surface from 7 to 14 µm with high spatial resolution. To support MERTIS and for cross-calibration with other instruments onboard BepiColombo (SYMBIO-SYS) and MESSENGER (MASCS) spacecraft, we compiled a list of Mercury analogue materials (Helbert et al., 2007, Adv. Space. Res. 40, p. 272-279). The list currently includes plagioclase and potassium feldspars, low Ca and high Ca pyroxenes, forsterite, elemental sulfur and an Apollo 16 lunar highland soil. For the spectral studies we prepared size fractions of ¡25, 25-63, 63-125, and 125-250 µm (except for the lunar soil). The samples were characterized in terms of chemical composition, mineralogy, and grain size distribution. Here we report the results of spectral reflectance measurements of these analogues from 0.5 to 18 µm. We compare the TIR reflectance spectra of the samples to their emissivity spectra from Berlin Emissivity Database (Maturilli et al., 2008, Planet. Space. Sci. 56, p. 420-425) to evaluate deviations from Kirchhoff's law for biconical reflectance. In addition, we report on a space weathering simulation experiment on plagioclase, and discuss future laboratory studies needed to support space missions to Mercury.

Item URL in elib:https://elib.dlr.de/56941/
Document Type:Conference or Workshop Item (Speech)
Title:Laboratory studies of Mercury analogue materials: optical spectroscopy and space weathering simulation experiments
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Moroz, L.University of Münster, GermanyUNSPECIFIED
Sasaki, S.National Astronomical Observatory of JapanUNSPECIFIED
Bischoff, A.University of Münster, GermanyUNSPECIFIED
Date:July 2008
Journal or Publication Title:COSPAR Abstracts
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 2110
Keywords:BepiColombo, MERTIS, MESSENGER, spectra, mineralogy, chemical composition, grain size distribution, reflectance, emissivity
Event Title:37th COSPAR Scientific Assembly
Event Location:Montréal (Canada)
Event Type:international Conference
Event Dates:2008-07-13 - 2008-07-20
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben BepiColombo (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Hempel, Stefanie
Deposited On:05 Jan 2009
Last Modified:27 Apr 2009 15:37

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