Evolution of planetesimal velocities

Details Evolution of planetesimal velocities Evolution of planetesimal velocities

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...74..542s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 74, June 1988, p. 542-553.

Computer Science

111

Planetary Evolution, Protoplanets, Energy Dissipation, Energy Transfer, Kinetic Energy, Many Body Problem, Planetary Orbits, Planets, Planetesimals, Evolution, Velocity, Calculations, Parameters, Numerical Methods, Size, Friction, Dynamics, Kinetic Energy, Drag, Gases, Collisions, Formation

Scientific paper

A self-consistent set of equations for the velocity evolution of a general planetesimal population is presented. Dynamical friction is found to be an important mechanism for transferring kinetic energy from the larger planetesimals to the smaller ones, providing an energy source for the small planetesimals that is comparable to that provided by the viscous stirring process. When small planetesimals are relatively abundant, gas drag and inelastic collisions among the smaller bodies are of comparable importance for dissipating energy from the population.

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