Tidal torques on accretion disks in close binary systems

Details Tidal torques on accretion disks in close binary systems Tidal torques on accretion disks in close binary systems

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasj...46..621i&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 46, no. 6, p. 621-628

Physics

24

Accretion Disks, Astronomical Models, Binary Stars, Stellar Physics, Tides, Torque, Dissipation, Hydrodynamics, Perturbation Theory, Stellar Mass Accretion

Scientific paper

The tidal torques exerted by a secondary star on a viscous accretion disk in a close binary system are calculated by the following two methods: (1) a linear perturbation method, and (2) a non-linear method based on simple periodic particle orbit in the binary potential. It is found that the tidal effects are generally small in the accretion disk, except near to the tidal truncation radius, which is given by the last non-intersecting periodic particle orbit in the disk. The non-linear tidal effects become significant only near the tidal truncation radius.

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