Density Waves in Satellite Precursor Discs

Details Density Waves in Satellite Precursor Discs Density Waves in Satellite Precursor Discs

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.242....1w&link_type=abstract

The Solid Bodies of the Outer Solar System, Proceedings of a conference held at Vulcano, Italy, 9-13 September, 1985. Compiled

Computer Science

5

Scientific paper

It is well established that a particle disc disturbed by nearby satellites exhibits collective wave behavior at its Lindblad resonances. Wave phenomena would also have been generated in a gaseous satellite precursor disc. However, a gaseous disc would most likely have been characterized by a large Toomre stability parameter. In such a case gravity waves fail to launch and the disc disturbance takes the form of pressure waves that propagate away from co-rotation. Although both wave types carry the same angular momentum flux, the distance to non-linearity for pressure waves is much further than for gravity waves. Shock damping is therefore unlikely and the transfer of angular momentum from wave to disc may be non-local. Implications of this to satellite accretion models are discussed.

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