METER-SIZED MOONLET POPULATION IN SATURN'S C RING AND CASSINI DIVISION
Abbreviated Journal Title
instrumentation: photometers; methods: observational; planets and; satellites: rings; space vehicles: instruments; PLANETARY RINGS; F-RING; SELF-GRAVITY; A-RING; OCCULTATIONS; ACCRETION; DISTRIBUTIONS; PARTICLES; FEATURES; WAVES; Astronomy & Astrophysics
Stellar occultations observed by the Cassini Ultraviolet Imaging Spectrograph reveal the presence of transparent holes a few meters to a few tens of meters in radial extent in otherwise optically thick regions of the C ring and the Cassini Division. We attribute the holes to gravitational disturbances generated by a population of similar to 10 m boulders in the rings that is intermediate in size between the background ring particle size distribution and the previously observed similar to 100 m propeller moonlets in the A ring. The size distribution of these boulders is described by a shallower power-law than the one that describes the ring particle size distribution. The number and size distribution of these boulders could be explained by limited accretion processes deep within Saturn's Roche zone.
"METER-SIZED MOONLET POPULATION IN SATURN'S C RING AND CASSINI DIVISION" (2013). Faculty Bibliography 2010s. 3649.