Structure, stability and evolution of Saturn's rings

Details Structure, stability and evolution of Saturn's rings Structure, stability and evolution of Saturn's rings

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.309..333b&link_type=abstract

Nature (ISSN 0028-0836), vol. 309, May 24, 1984, p. 333-335. Research supported by the California Space Institute.

Computer Science

169

Ice, Particle Collisions, Planetary Evolution, Saturn Rings, Collision Parameters, Dynamic Models, Optical Thickness, Stability, Saturn, Rings, Evolution, Structure, Voyager Missions, Thickness, Earth-Based Observations, Compositon, Ice, Particles, Size, Ringlets, B Ring, Optical Properties, Depth, Collisions, Experiments, Impacts, Velocity, Dynamics, Models, Diffusion, Viscosity, Calculations

Scientific paper

Attention is given to preliminary results from an experiment designed to measure the restitution coefficient of ice particles colliding at impact velocities relevant to the conditions found in the rings of Saturn. These results are applied to simple dynamical models of the rings to deduce their thickness, which is estimated to be less than 5 m. It is also shown that regions whose optical depth is less than 0.5, such as the B ring, are unstable to viscous diffusion and therefore able to furnish a mechanism for optical depth variations in the B ring.

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