The theory of Neptunian arcs. I - Stability of a single epiton

Details The theory of Neptunian arcs. I - Stability of a single epiton The theory of Neptunian arcs. I - Stability of a single epiton

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17.1105g&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, Dec. 1991, p. 1105-1115. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

1

Celestial Mechanics, Neptune (Planet), Particle Interactions, Planetary Rings, Vortices, Arcs, Digital Simulation, Solar Orbits

Scientific paper

Attention is given to the fundamental problem of arc dynamics, namely, why arcs fail to disperse along the orbit. The model developed by Gor'kavyi (1989) which suggested that the arc is a chain of epicyclic vortices (epitons) in the complete ring is tested with a direct numerical simulation which takes the inelastic collision between identical spherical particles into account. It is shown that the vortex may be regarded as a stable formation if there exists a natural mechanism which arranges the particles of the vortex in a collisionless order.

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