Physics
Scientific paper
Jun 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983m%26p....28..251f&link_type=abstract
Moon and the Planets (ISSN 0165-0807), vol. 28, June 1983, p. 251-258. Research supported by the Consiglio Nazionale delle Ricer
Physics
3
Gravitational Effects, Satellite Surfaces, Saturn Satellites, Shapes, Collisions, Enceladus, Hyperion, Mimas, Phoebe, Planetary Evolution, Rotation
Scientific paper
In the set of small satellites of Saturn recently imaged by the Voyager probes, the transition from irregularly-shaped, strength-dominated objects to larger, gravity-dominated bodies with shapes roughly fitting the theoretical equilibrium figures can be observed. The transition occurs for a radius of 100 + or - 50 km, corresponding to a typical material strength of the order of 10 million dynes/sq cm. The cases of Mimas, Enceladus, Hyperion, Phoebe and the small coorbital and F-ring shepherding moons are briefly discussed, showing that an analysis of the shape data can often provide interesting results on the physical properties, origin and collisional history of these objects.
Farinella Paolo
Milani Andrea
Nobili Anna M.
Paolicchi Paolo
Zappala Vincent
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