Physics
Scientific paper
Apr 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aps..ohi...a01j&link_type=abstract
American Physical Society, Ohio Section Spring Meeting, April 13, 1996, abstract #A.01
Physics
Scientific paper
Runaway growth of planetesimals during the mid--stage of planetary formation is characterized by the rapid growth of a few planetesimals to comparatively large mass in a relatively brief time. We have developed a hybrid kinetic theory/N-body simulation to investigate runaway growth. Previous studies of mid--stage planetary formation are either entirely kinetic theory or N-body. Kinetic theory simulations alone are unable to accurately follow the behavior of a few potential runaways; whereas, pure N-body simulations can accurately follow the evolution of potential runaways, they do not include the interactions with the low mass swarm. Our hybrid code statistically simulates the evolution of the smaller bodies in the swarm, and directly follows the larger potential runaways as an N-body calculation. In this way, we account for all of the effects that will determine if runaways are actually produced. We present preliminary results of the interaction of potential runaways with a lower mass swarm of co--orbiting planetesimals.
Alexander S. G.
Jewell Gregory M.
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