Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.3001r&link_type=abstract
American Astronomical Society, DPS meeting #40, #30.01; Bulletin of the American Astronomical Society, Vol. 40, p.445
Astronomy and Astrophysics
Astronomy
Scientific paper
Cassini provided many radio occultation profiles of the rings, in particular diametric occultation profiles at the beginning of the nominal mission. Those have been corrected for diffraction effect. Using simulations, we established a procedure to analyze linear and non-linear density waves. This procedure recovers the wave kinematic parameters. It was applied so far to a few waves, using radio occultation profiles. The non-linear dispersion relation, including the pressure term and the satellite term, allows us to determine the opacity, velocity dispersion, and background surface density. Comparisons are made with the case where the linear dispersion is used.
French Richard G.
Longaretti P.
Marouf Essam A.
McGhee Colleen Anne
Rappaport Nicole
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