Collisional interactions of ring particles - The ballistic transport process

Details Collisional interactions of ring particles - The ballistic transport process Collisional interactions of ring particles - The ballistic transport process

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...54..253i&link_type=abstract

(Saturn Conference, Tucson, AZ, May 11-15, 1982) Icarus (ISSN 0019-1035), vol. 54, May 1983, p. 253-262.

Astronomy and Astrophysics

Astronomy

20

Astronomical Models, Ballistic Trajectories, Monte Carlo Method, Particle Interactions, Particle Size Distribution, Saturn Rings, Ejecta, Meteorite Collisions, Optical Density, Particle Trajectories, Random Walk, Saturn, Interactions, Rings, Particles, Ballistics, Transport

Scientific paper

The role of variations in the size distribution, optical depth, and surface composition of Saturnian ring material in the dynamics of production and recycling of dust particles in the whole ring system is examined. A simple Monte Carlo model incorporating the ballistic motion of small dust particles ejected by meteoroid impact as well as the inelastic collision of the ejected particles with the ring plane is presented. It is found that the redistribution of the ejected matter depends on the optical depth variation across the ring system and the initial ejection speed, and hence the scale length of random walk on the ring plane. For small values of the scale length, the ejecta would accumulate at positions of sharp change in optical depth. On the basis of this result, it is conjectured that the double-peaked feature observed for a number of narrow ringlets may be generated in this manner also.

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