NASA NTRS · 19810060806
Density waves in Saturn's rings
Abstract
Certain radial brightness variations in the outer Cassini division of Saturn's rings may be spiral density waves driven by Saturn's large moon Iapetus, in which case a value of approximately 16 g/sq cm for the surface density is calculated in the region where the waves are seen. The kinematic viscosity in the same region is approximately 170 sq cm/s and the vertical scale height of the ring is estimated to be a maximum of approximately 40 m.
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Cuzzi, J. N., Lissauer, J. J., Shu, F. H.. 1981-08-20. Density waves in Saturn's rings. https://ntrs.nasa.gov/citations/19810060806
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