Astronomy and Astrophysics – Astronomy
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...70..289s&link_type=abstract
Icarus (ISSN 0019-1035), vol. 70, May 1987, p. 289-302. Research supported by the Institut National d'Astronomie et Geophysique.
Astronomy and Astrophysics
Astronomy
6
Collisions, Planetary Evolution, Planetary Rings, Computerized Simulation, Monte Carlo Method, Planetary Structure, Planets, Structure, Rings, Collisions, Celestial Mechanics, Evolution, Parameters, Models, Motion, Angular Momentum, Energy, Equilibrium, Scattering, Damping, Concentration, Distribution, Numerical Methods, Eccentricity, Rotation
Scientific paper
The present numerical simulation of collisional evolution, in the case of a hypothetical ring whose parameters are modeled after those of Saturn's rings, gives attention to changes in radial structure near the ring edges and notes that when random motion is in equilibrium, the rings tend to spread in order to conserve angular momentum while energy is dissipated in collisions. As long as random motion is damped, ring edges may contract rather than spread, producing a concentration of material at the ring edges. For isotropic scattering, damping dominates for a coefficient of restitution of velocity value of up to 0.83.
Greenberg Richard
Spaute Dominique
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