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Two-Dimensional Numerical Models of the Boundary Layer of Accretion Disks in Cataclysmic Variables

Published online by Cambridge University Press:  12 April 2016

W. Kley  and
G. Hensler
W. Kley
Affiliation:
Institut für Astronomie und Astrophysik der Universität München, München, F.R.G.
G. Hensler
Affiliation:
Institut für Astronomie und Astrophysik der Universität München, München, F.R.G.

Abstract

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Nearly half of the total available accretion energy can be released in the boundary layer (BL) if the accreting object is slowly rotating. The spectral distribution of the emitted radiation depends crucially on the internal structure of the BL. Up to now no detailed models concerning the BL exist. We have developed an explicit two-dimensional numerical method written for axisymmetric accretion flows including viscosity effects and angular momentum. We display our first models concerning the BL structure incorporating variation of the stellar rotation and of the fraction of the released energy. The first results show a strong dependence of the BL structure on the local rate of cooling and on the rotation of the primary.

Type
IV. Accretion Disks
Information
International Astronomical Union Colloquium , Volume 93: Cataclysmic Variables: Recent Multi-Frequency Observations and Theoretical Developments , 1987 , pp. 321 - 326
Copyright
Copyright © Reidel 1987

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