Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985s%26t....69...19c&link_type=abstract
Sky and Telescope (ISSN 0037-6604), vol. 69, Jan. 1985, p. 19-23.
Astronomy and Astrophysics
Astronomy
4
Jupiter Rings, Planetary Evolution, Saturn Rings, Astronomical Photography, Gravitational Effects, Morphology, Natural Satellites, Neptune Atmosphere, Saturn Atmosphere, Uranus Rings, Planets, Rings, Popular, Saturn, F Ring, Satellites, Voyager Missions, Moolets
Scientific paper
The morphology of the rings of Saturn and the mechanisms proposed to explain their fluctuations and origin are discussed and illustrated with photographs and diagrams in a general review. The kinks and braids of the F ring are attributed to the gravitational effects of the known shepherding satellites and/or a number of as yet unseen moonlets; the irregular gaps in the B and inner A rings, to particle interactions (diffusion-instability processes); and the flickering spokes of the central B ring, to the rotation of the Saturn magnetic field. It is pointed out that the composition of the single Jovian ring and of the Jovian satellites can be explained if both are remnants of the planet's primordial disk, but that the rock-ice compositions of the rings and inner satellites of Saturn require a more sophisticated model, perhaps involving meteoroid erosion. The rings of Uranus and Neptune are briefly considered.
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