Dynamical Friction in Keplerian Disks

Details Dynamical Friction in Keplerian Disks Dynamical Friction in Keplerian Disks

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1377w&link_type=abstract

Lunar and Planetary Science, volume 27, page 1377

Physics

1

Cosmogony, Disk Tides, Orbit Migration, Planetary Systems, Protoplanets

Scientific paper

Recent null attempts to detect Jupiter-sized planets about nearby solar type stars have led to questions conceming the frequency of planetary systems. We stress that resonant interactions between a protoplanet and disk give rise to strong dynamical friction (i.e., disk tides) that causes orbital decay. A simple particle model is employed to illuminate the physical origin of the net negative torque from tidal interactions with a Keplerian disk. It may be that the ultimate survival of a planetary system is less likely that commonly believed.

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