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The morphology and surface processes of Comet 19/P Borrelly

Britt, D.T. and Boice, D.C. and Buratti, B.J. and Campins, H. and Nelson, R.M. and Oberst, J. and Sandel, B.R. and Stern, S.A. and Soderblom, L.A. and Thomas, N. (2004) The morphology and surface processes of Comet 19/P Borrelly. Icarus: International Journal of Solar System Studies, 167 (1), pp. 45-53. Elsevier. DOI: 10.1016/j.icarus.2003.09.004 ISSN 0019-1035

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Abstract

The flyby of the nucleus of the Comet 19P/Borrelly by the Deep Space 1 spacecraft produced the best views to date of the surface of these interesting objects. It transformed Borrelly from an astronomical object shrouded in coma of gas and dust into a geological object with complex surface processes and a rich history of erosion and landform evolution. Based on analysis of the highest resolution images, stereo images, photometry, and albedo we have mapped four major morphological units and four terrain features. The morphological units are named dark spots, mottled terrain, mesas, and smooth terrain. The features are named ridges, troughs, pits, and hills. In strong contrast to asteroids, unambiguous impact craters were not observed on Borrelly's surface. Because of the relatively short period of this comet, surface erosion by volatile sublimation is, in geologic terms, a very active process. The formation and the morphologies of units and features appear to be driven by differential rates of sublimation erosion. Erosional rates across the comet are probably controlled by solar energy input and the location of the subsolar point during perihelion. Differences in energy input may produce different varieties of sublimation erosional landforms. The terrains on Borrelly suggest that solar energy input could map directly into erosional processes and landforms.

Item URL in elib:https://elib.dlr.de/10905/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:The morphology and surface processes of Comet 19/P Borrelly
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Britt, D.T.University of Central Florida, Department of Physics, Orlando, FloridaUNSPECIFIED
Boice, D.C.Southwest Research Institute, Boulder, COUNSPECIFIED
Buratti, B.J.Jet Propulsion Laboratory, Pasadena, CAUNSPECIFIED
Campins, H.University of Central Florida, Department of Physics, Orlando, FloridaUNSPECIFIED
Nelson, R.M.Jet Propulsion Laboratory, Pasadena, CAUNSPECIFIED
Oberst, J.UNSPECIFIEDUNSPECIFIED
Sandel, B.R.Lunar and Planetary Laboratory, University of Arizona, Tucson, AZUNSPECIFIED
Stern, S.A.Southwest Research Institute, Boulder, COUNSPECIFIED
Soderblom, L.A.United States Geological Survey, Flagstaff, AZUNSPECIFIED
Thomas, N.Department of Space Research and Planetology, Physikalisches Institut, Bern, SwitzerlandUNSPECIFIED
Date:2004
Journal or Publication Title:Icarus: International Journal of Solar System Studies
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:167
DOI :10.1016/j.icarus.2003.09.004
Page Range:pp. 45-53
Publisher:Elsevier
ISSN:0019-1035
Status:Published
Keywords:Comets, geological processes, regoliths, surfaces, comets
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):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: DLR-Beauftragter, elib
Deposited On:08 Dec 2005
Last Modified:14 Jan 2010 16:29

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