Physics
Scientific paper
Dec 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...56..439e&link_type=abstract
Icarus (ISSN 0019-1035), vol. 56, Dec. 1983, p. 439-452.
Physics
80
Planetary Structure, Saturn Rings, Stellar Occultation, Voyager 2 Spacecraft, Density Wave Model, Optical Thickness, Planetary Mass, Power Spectra, Ring Structures
Scientific paper
A 100-m resolution has been obtained in the radial direction, across the entire Saturn ring system, in Voyager 2 photopolarimeter observations of Delta Scorpii as it was occulted by the rings. An automatic search with finite Fourier transforms located 13 density waves excited by resonances with Saturn's satellites. Although strong density waves can be easily located, no waves have been identified which have predicted torques/surface mass density values lower than 4 x 10 to the 16th cu cm/sec-squared. This suggests a limit of less than 100 waves to be found in the Saturn rings. Total ring mass is estimated as 5 x 10 to the -8th of the mass of Saturn. The power spectrum for the rings shows no dominant individual wavelengths. The majority of ring structures and most variance in ring optical depth are not explainable by currently entertained physical mechanisms.
Esposito W. L. W. L.
Ocallaghan M.
West Robert A.
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