Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...93...25r&link_type=abstract
Icarus (ISSN 0019-1035), vol. 93, Sept. 1991, p. 25-44.
Astronomy and Astrophysics
Astronomy
58
Janus, Orbital Resonances (Celestial Mechanics), Radio Occultation, Saturn Rings, Waveforms, Astronomical Photometry, Density Wave Model, Planetary Mass, Voyager 1 Spacecraft
Scientific paper
Wavelength dispersion and waveform modeling methods are applied to 29 wavelike features noted in radio occultation profiles of the rings of Saturn. Accumulation of mass near resonance is suggested by the surface density estimates' exceeding of dispersion-derived values by 20-40 percent. The model waveforms of overlapping waves excited by Janus and Epimetheus are in good agreement with observed linear-region morphologies near resonance; mass estimates that are underdense relative to water ice are implied for Janus, Epimetheus, Prometheus, and Pandora.
Lissauer Jack . J.
Marouf Essam A.
Rosen Paul A.
Tyler Leonard G.
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