Computer Science
Scientific paper
Jul 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...55..124b&link_type=abstract
Icarus (ISSN 0019-1035), vol. 55, July 1983, p. 124-132.
Computer Science
47
Particle Collisions, Planetology, Ring Structures, Angular Momentum, Boltzmann Transport Equation, Deformation, Ellipsoids, Kinematics, Momentum Transfer, Stress Tensors
Scientific paper
The velocity ellipsoid in a particle disk near an isolated satellite resonance is determined by solving the Boltzmann moment equations, and solutions are obtained that are stationary functions of the azimuthal angle in a coordinate frame which rotates with the pattern speed of the perturbation potential. The magnitude of the deformation rate tensor in a perturbed particle disk is bounded from above by an expression which includes the orbital angular velocity, the optical depth, and a dimensionless constant of order unity. It is also found that, in sufficiently perturbed regions, there are ranges of azimuthal angle over which the radial component of the angular momentum flux is negative. It is also possible for the angular momentum luminosity to be negative. These results are pertinent to the understanding of sharp edges and density wave decay in planetary rings.
Borderies Nicole
Goldreich Peter
Tremaine Scott
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