Perturbations to Saturn's F-ring strands at their closest approach to Prometheus

Details Perturbations to Saturn's F-ring strands at their closest approach to Prometheus Perturbations to Saturn's F-ring strands at their closest approach to Prometheus

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000p%26ss...48..817g&link_type=abstract

Planetary and Space Science, Volume 48, Issue 9, p. 817-827.

Physics

8

Scientific paper

The strange morphology of the F ring of Saturn is thought to be caused by the perturbing effects of two close satellites, Prometheus and Pandora. The F ring and the satellites also experience periodic close encounters as a result of differential precession arising from Saturn's oblateness. Using the orbits of the F-ring strands derived by Murray et al. (1997, Icarus 129, 304-316) the behaviour of the ring particles at their closest approach to Prometheus is analysed using numerical simulations. The results show that a gap and a wave are formed in the ring at each encounter with the satellite. However, the gap is expected to have a short lifetime due to keplerian shear.

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