Planetesimals to planets - Numerical simulation of collisional evolution

Details Planetesimals to planets - Numerical simulation of collisional evolution Planetesimals to planets - Numerical simulation of collisional evolution

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978icar...35....1g&link_type=abstract

Icarus, vol. 35, July 1978, p. 1-26.

Astronomy and Astrophysics

Astrophysics

182

Collision Parameters, Computerized Simulation, Gravitational Effects, Planetary Evolution, Solar Simulation, Algorithms, Escape Velocity, Mass Distribution, Orbital Elements, Particle Size Distribution, Velocity Distribution

Scientific paper

In a simulation of collisional and gravitational interaction in the early solar system, planets of approximately 500 km diameter are generated from an initial swarm of kilometer-sized planetesimals. Collisions are treated in accordance with experimental and theoretical impact results (such as rebound, cratering, and catastrophic fragmentation) for a variety of materials whose parameters span plausible values for early solid objects. In this model, the small planets form in approximately 10,000 yr; during this time, most of the mass of the system continues to reside in particles near the original size. It is thought that the few 500-km planets may act as 'seeds' for the subsequent gradual accretional growth into full-sized planets.

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