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Vesta surface thermal properties map

Capria, M.T. and Tosi, F. and De Sanctis, M.C. and Capaccioni, F. and Ammannito, E. and Frigeri, A. and Zambon, F. and Fonte, S. and Palomba, E. and Turrini, D. and Titus, T. and Schröder, S.E. and Toplis, M. and Li, J.-Y. and Combe, J.-P. and Raymond, C.A. and Russell, C.T. (2014) Vesta surface thermal properties map. Geophysical Research Letters, 41 (5), pp. 1438-1443. Wiley. doi: 10.1002/2013GL059026. ISSN 0094-8276.

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The first ever regional thermal properties map of Vesta has been derived from the temperatures retrieved by infrared data by the mission Dawn. The low average value of thermal inertia, 30 ± 10 J m−2 s−0.5 K−1, indicates a surface covered by a fine regolith. A range of thermal inertia values suggesting terrains with different physical properties has been determined. The lower thermal inertia of the regions north of the equator suggests that they are covered by an older, more processed surface. A few specific areas have higher than average thermal inertia values, indicative of a more compact material. The highest thermal inertia value has been determined on the Marcia crater, known for its pitted terrain and the presence of hydroxyl in the ejecta. Our results suggest that this type of terrain can be the result of soil compaction following the degassing of a local subsurface reservoir of volatiles.

Item URL in elib:https://elib.dlr.de/88844/
Document Type:Article
Title:Vesta surface thermal properties map
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
De Sanctis, M.C.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
Capaccioni, F.INAF-IAPS, Via del Fosso del Cavaliere 100, I-00133 Rome, ItalyUNSPECIFIED
Frigeri, A.INAF, Istituto di Astrofisica e Planetologia Spaziali, Rome, 00133, ItalyUNSPECIFIED
Zambon, F.INAF-IAPS, Via del Fosso del Cavaliere 100, I-00133 Rome, ItalyUNSPECIFIED
Fonte, S.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Turrini, D.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Titus, T.US Geological Survey, Flagstaff, AZ, USAUNSPECIFIED
Schröder, S.E.stefanus.schroeder (at) dlr.deUNSPECIFIED
Toplis, M.Observatoire Midi-Pyrenees, Toulouse, FranceUNSPECIFIED
Li, J.-Y.University of Maryland, College Park, MD, USA.UNSPECIFIED
Combe, J.-P.Bear Fight Institute, 22 Fiddler’s Road, Box 667, Winthrop, Washington 98862, USAUNSPECIFIED
Raymond, C.A.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USAUNSPECIFIED
Russell, C.T.Institute of Geophysics, University of California, Los Angeles, Los Angeles, CA 90095UNSPECIFIED
Date:16 March 2014
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1002/2013GL059026
Page Range:pp. 1438-1443
Keywords:Vesta, Vesta thermal inertia, thermal properties, Vesta surface
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project DAWN
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Schröder, Dr. Stefan
Deposited On:26 May 2014 09:04
Last Modified:31 Jul 2019 19:46

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