Saturn's nonaxisymmetric ring edges at 1.95 R(s) and 2.27 R(s)

Details Saturn's nonaxisymmetric ring edges at 1.95 R(s) and 2.27 R(s) Saturn's nonaxisymmetric ring edges at 1.95 R(s) and 2.27 R(s)

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...60...17p&link_type=abstract

Icarus (ISSN 0019-1035), vol. 60, Oct. 1984, p. 17-28.

Astronomy and Astrophysics

Astronomy

45

Planetology, Saturn Rings, Amplitudes, Astronomical Models, Data Reduction, Edges, Voyager Project, Saturn, Rings, Symmetry, A Ring, B Ring, Voyager Missions, Kinematics, Shape, Resonance, Amplitude, Coorbitals, Motion, Celestial Mechanics, Satellites, Mimas, Thickness

Scientific paper

The outer edges of Saturn's A and B rings, at 2.27 Rs and 1.95 Rs, have been examined using data acquired by four Voyager experiments. The shapes and kinematics of these features are influenced by their proximity to strong low-order Lindblad resonances. The data for the A-ring edge are consistent with a seven-lobed radial distortion of amplitude 6.7±1.5 km which rotates with the mass-weighted mean angular velocity of the coorbital satellite system. The B-ring edge has essentially, a double-lobed figure of radial amplitude 74±9 km which rotates with the mean motion of Mimas, though there is an indication that it is not completely described with a simple Saturn-centered ellipse. An upper limit of 10 m has been placed on the vertical thickness in the unperturbed region of the B ring.

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