Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001arep...45..611b&link_type=abstract
Astronomy Reports, Volume 45, Issue 8, August 2001, pp.611-619
Astronomy and Astrophysics
Astronomy
9
Scientific paper
We present the results of three-dimensional gas-dynamical simulations of matter flows in semi-detached binaries after termination of the mass transfer between the components of the system. The structure of the residual accretion disk is studied. When the mass transfer has ended, the quasi-elliptical disk becomes circular and its structure changes: tidal interactions result in the formation of a second arm in the spiral shock wave. In addition, a condensation (blob) moving through the disk with variable velocity is formed. The blob is maintained by interactions with the arms of the spiral shock and exists essentially over the entire lifetime of the disk. We also show that, for a viscosity corresponding to α˜0.01 (typical for observed accretion disks), the lifetime of the residual disk is about 50 orbital periods.
Bisikalo Dimitry V.
Boyarchuk Alexander A.
Chechetkin V. M.
Kil'Pio A. A.
Kuznetsov Oleg A.
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