Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· References in the article
· Citations to the Article (54) (Citation History)
· Refereed Citations to the Article
· Associated Articles
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
The shape, topography, and geology of Tempel 1 from Deep Impact observations
Authors:
Thomas, Peter C.; Veverka, J.; Belton, Michael J. S.; Hidy, Alan; A'Hearn, Michael F.; Farnham, T. L.; Groussin, Olivier; Li, Jian-Yang; McFadden, Lucy A.; Sunshine, Jessica; Wellnitz, Dennis; Lisse, Carey; Schultz, Peter; Meech, Karen J.; Delamere, W. Alan
Affiliation:
AA(Center for Radiophysics and Space Research, Cornell University, Ithaca, NY 14853, USA), AB(Center for Radiophysics and Space Research, Cornell University, Ithaca, NY 14853, USA), AC(Belton Space Exploration Initiatives, 430 S. Randolf Way, LLC, Tucson, AZ 85716, USA), AD(Department of Geology, Utah State University, Logan, UT 84322, USA), AE(Department of Astronomy, University of Maryland, College Park, MD 20742, USA), AF(Department of Astronomy, University of Maryland, College Park, MD 20742, USA), AG(Department of Astronomy, University of Maryland, College Park, MD 20742, USA), AH(Department of Astronomy, University of Maryland, College Park, MD 20742, USA), AI(Department of Astronomy, University of Maryland, College Park, MD 20742, USA), AJ(Department of Astronomy, University of Maryland, College Park, MD 20742, USA), AK(Department of Astronomy, University of Maryland, College Park, MD 20742, USA), AL(Applied Physics Laboratory, 11000 Johns Hopkins Rd., Laurel, MD 20723, USA), AM(Department of Geological Sciences, Brown University, Providence, RI 02912, USA), AN(Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA), AO(Delamere Support Services, 525 Mapleton Avenue, Boulder, CO 80306, USA)
Publication:
Icarus, Volume 187, Issue 1, p. 4-15. (Icarus Homepage)
Publication Date:
03/2007
Origin:
ELSEVIER
DOI:
10.1016/j.icarus.2006.12.013
Bibliographic Code:
2007Icar..187....4T

Abstract

Deep Impact images of the nucleus of Comet Tempel 1 reveal pervasive layering, possible impact craters, flows with smooth upper surfaces, and erosional stripping of material. There are at least 3 layers 50 200 m thick that appear to extend deep into the nucleus, and several layers 1 20 m thick that parallel the surface and are being eroded laterally. Circular depressions show geographical variation in their forms and suggest differences in erosion rates or style over scales >1 km. The stratigraphic arrangement of these features suggests that the comet experienced substantial periods of little erosion. Smooth surfaces trending downslope suggest some form of eruption of materials from this highly porous object. The Deep Impact images show that the nucleus of Tempel 1 cannot be modeled simply as either an onion-layer or rubble pile structure.

Associated Articles

Related Paper     Main Paper    


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

   


Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints