The distribution of comets around stars

Details The distribution of comets around stars The distribution of comets around stars

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aspc...36..335t&link_type=abstract

In: Planets around pulsars; Proceedings of the Conference, California Inst. of Technology, Pasadena, Apr. 30-May 1, 1992 (A93-36

Physics

25

Celestial Mechanics, Comets, Oort Cloud, Planetary Systems, Asteroids, Protoplanets

Scientific paper

The distribution of comets around stars surrounded by planetary systems that formed from disks is analyzed. Results reveal that stars similar to the sun can only generate an Oort-type cloud efficiently if they contain planets at semimajor axis greater than approximately 3 AU. The typical semimajor axis in an Oort-type cloud around a solar-type star will be 10 exp 4 AU. Halo stars are found to require planets that are smaller by about a factor of 3 at a given semimajor axis, and produce larger cloud, with a semimajor axis of about 2 x 10 exp 4 AU.

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