Accretional evolution of a planetesimal swarm. I - A new simulation

Details Accretional evolution of a planetesimal swarm. I - A new simulation Accretional evolution of a planetesimal swarm. I - A new simulation

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...92..147s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 92, July 1991, p. 147-164.

Physics

60

Asteroids, Digital Simulation, Planetary Evolution, Protoplanets, Terrestrial Planets, Orbital Elements, Size Distribution

Scientific paper

This novel simulation of planetary accretion simultaneously treats many interacting heliocentric distance zones and characterizes planetesimals via Keplerian elements. The numerical code employed, in addition to following the size distribution and the orbit-element distribution of a planetesimal swarm from arbitrary size and orbit distributions, treats a small number of the largest bodies as discrete objects with individual orbits. The accretion algorithm used yields good agreement with the analytic solutions; agreement is also obtained with the results of Weatherill and Stewart (1989) for gravitational accretion of planetesimals having equivalent initial conditions.

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