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Pitted Terrain on Vesta and Implications for the Presence of Volatiles.

Denevi, B.W. and Blewett, D.T. and Buczkowski, D.L. and Capaccioni, F. and Capria, M.T. and De sanctis, M.C. and Garry, W.B. and Gaskell, R.W. and Le Corre, L. and Li, J.-Y. and Marchi, S. and McCord, T.B. and O'Brien, D.P. and Petro, N.E. and Pieters, C.M. and Preusker, Frank and Raymond, C.A. and Reddy, V. and Russell, C.T. and Schenk, P. and Scully, J. and Sunshine, J.M. and Tosi, N. and Williams, D.A. and Wyrick, D. Y. (2012) Pitted Terrain on Vesta and Implications for the Presence of Volatiles. Science, 338 (246), pp. 246-249. American Association for the Advancement of Science (AAAS). DOI: 10.1126/science.1225374

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Abstract

We investigated the origin of unusual pitted terrain on asteroid Vesta, revealed in images from the Dawn spacecraft. Pitted terrain is characterized by irregular rimless depressions found in and around several impact craters, with a distinct morphology not observed on other airless bodies. Similar terrain is associated with numerous martian craters, where pits are thought to form through degassing of volatile-bearing material heated by the impact. Pitted terrain on Vesta may have formed in a similar manner, which indicates that portions of the surface contain a relatively large volatile component. Exogenic materials, such as water-rich carbonaceous chondrites, may be the source of volatiles, suggesting that impactor materials are preserved locally in relatively high abundance on Vesta and that impactor composition has played an important role in shaping the asteroid’s geology.

Item URL in elib:https://elib.dlr.de/80020/
Document Type:Article
Title:Pitted Terrain on Vesta and Implications for the Presence of Volatiles.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Denevi, B.W.JHU/APL, Laurel, USAUNSPECIFIED
Blewett, D.T.JHU/APL, Laurel, USAUNSPECIFIED
Buczkowski, D.L.JHU/APL, Laurel, USAUNSPECIFIED
Capaccioni, F.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
Capria, M.T.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
De sanctis, M.C.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
Garry, W.B.Planetary Science Institute, Tucson, AZ, USAUNSPECIFIED
Gaskell, R.W.Planetary Science Institute, Tucson, AZ, USAUNSPECIFIED
Le Corre, L.Max Planck Institute for Solar System Research, Max-Planck-Str. 2, Katlenburg-Lindau, 37191, GermanyUNSPECIFIED
Li, J.-Y.University of Maryland, College Park, MD, USA.UNSPECIFIED
Marchi, S.NASA Lunar Science Institute, Boulder, CO, USA.UNSPECIFIED
McCord, T.B.National Museum of Natural History, Smithsonian Institution, Washington, DC, USA.UNSPECIFIED
O'Brien, D.P.Planetary Science Institute, Tucson, AZ, United States.UNSPECIFIED
Petro, N.E.NASA Goddard Space Flight Center, Greenbelt, MD, United States.UNSPECIFIED
Pieters, C.M.Brown University, Providence, RI, USAUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Raymond, C.A.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USAUNSPECIFIED
Reddy, V.Max Planck Institute for Solar System Research, Max-Planck-Str. 2, Katlenburg-Lindau, 37191, GermanyUNSPECIFIED
Russell, C.T.UCLA, Institute of Geophysics, Los Angeles, CA 90095-1567, USAUNSPECIFIED
Schenk, P.Lunar and Planetary Institute, 3600 Bay Area Blvd, Houston TX 77058, USAUNSPECIFIED
Scully, J.UCLA, Institute of Geophysics, Los Angeles, CA 90095-1567, USAUNSPECIFIED
Sunshine, J.M.University of Maryland, College Park, MD, USAUNSPECIFIED
Tosi, N.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
Williams, D.A.Arizona State UniversityUNSPECIFIED
Wyrick, D. Y.SWRI, San AntonioUNSPECIFIED
Date:12 October 2012
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:338
DOI :10.1126/science.1225374
Page Range:pp. 246-249
Publisher:American Association for the Advancement of Science (AAAS)
Status:Published
Keywords:geology, asteroid, Vesta, pitted terrain
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 DAWN
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Deposited By: Preusker, Frank
Deposited On:07 Jan 2013 09:06
Last Modified:31 Jul 2019 19:39

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