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Modeling Tidal Effects in Accretion Discs

Published online by Cambridge University Press:  12 April 2016

Patrick Godon*
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, MS 238–332, 4800 Oak Grove Dr., Pasadena, CA 91109, USA

Abstract

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A two-dimensional time-dependent spectral code is used for the study of tidal effects in accretion discs. A cool disc around a white dwarf (characteristic of CV systems) is modeled under the assumption of a polytropic equation of state and a standard alpha viscosity prescription. For a mass ratio q < 0.1 (considered here) and under the assumption of a reflective inner boundary, tidal effects induce an eccentric (m=l azimuthal) mode in the disc together with an elliptic (m=2 azimuthal) mode in the inner disc.

Type
Part 7. Local and Global Instabilities and Disk Perturbations
Copyright
Copyright © Astronomical Society of the Pacific 1997

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