Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...225..105d&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 225, no. 1, Nov. 1989, p. 105-111.
Astronomy and Astrophysics
Astrophysics
13
Accretion Disks, Astronomical Models, Convection, Turbulent Mixing, Viscosity, Binary Stars, Cataclysmic Variables, Mass Flow Rate, Thermodynamic Properties, Ultraviolet Radiation
Scientific paper
The paper presents model calculations of geometrically thin accretion disks where in the convective zones the viscosity parameter alpha is determined in a self-consistent way by using the mixing length description of turbulent convection. In the radiative parts of the disk, a (constant) viscosity parameter alpha still has to be used. It is shown that these models fulfill the requirements for realistic disk outbursts in close binary systems. Thus it is possible to construct disk and outburst models with one free parameter less. The implications of these models for phenomena in disk outbursts which are still not fully understood are discussed.
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