Collisional Simulations of Cometary Nuclei

Details Collisional Simulations of Cometary Nuclei Collisional Simulations of Cometary Nuclei

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..528s&link_type=abstract

Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July

Astronomy and Astrophysics

Astronomy

Scientific paper

A cometary nucleus is believed to be porous and contain various chemical components including silicates ices and organic materials. Mechanical properties of such material could be widely varied by compaction and thermal alteration whose activity strongly depends on temperature and chemical composition. I have simulated collisions between porous cometary nuclei by SPH method. A variety of collisional outcomes (sticking cratering and catastrophic disruption) is observed according to the strengths of a nucleus. Constraints on the formation condition of cometary nuclei and possibility of the rubble pile structure are discussed.

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