Estimating crater size for hypervelocity impacts on small icy bodies (e.g. comet nucleus)

Burchell, M.J. and Johnson, E. and Grey, I. (2004) Estimating crater size for hypervelocity impacts on small icy bodies (e.g. comet nucleus). Cratering in Marine Environments and on Ice . pp. 197-210. (The full text of this publication is not available from this repository)

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Abstract

The morphology and size expected for impact craters on small icy bodies are presented. Such bodies are for example minor satellites of the outer planets (some of which are ice covered) or comet nuclei. The differences between the impact craters that result on such bodies, compared to those on more traditional ice targets (effectively large, well consolidated, semi-infinite ice surfaces) is discussed with particular reference to the impact on a comet nucleus expected in the Deep Impact space mission. Finally extrapolation of laboratory scale experiments is carried out to try and quantify crater size and shape for impacts on small, porous bodies. It is found that given our present knowledge, simple scaling with impact energy produces a result compatible to scaling via more sophisticated methods. The handling of the influence of the detailed composition of the ice target (porosity, volatile content, silicate content etc.) is less certain.

Item Type: Article
Additional information: Editors: Dypvik, H, Burchell MJ, Claeys P 7th Workshop on Icy Impacts and Icy Targets AUG 29-SEP 03, 2001 Svalbard, Norway,
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Mark Burchell
Date Deposited: 28 May 2009 14:37
Last Modified: 14 Jan 2010 14:19
Resource URI: http://kar.kent.ac.uk/id/eprint/5016 (The current URI for this page, for reference purposes)
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