Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apjs...55..367c&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 55, July 1984, p. 367-388. Research supported by the Robert A. We
Astronomy and Astrophysics
Astrophysics
141
Accretion Disks, Binary Stars, Stellar Mass Accretion, Stellar Structure, Variable Stars, X Ray Sources, Convection, Dwarf Novae, Opacity, Radiative Transfer, Stellar Luminosity, Stellar Models, Thermal Instability
Scientific paper
In order to understand the physical processes that determine the time-dependent characteristics of accretion disks, a parameter investigation is conducted of the vertically explicit structure corresponding to steady state, alpha-model thin disk accretion for accreting objects of 1 solar mass. Attention is given to the role of convection in the vertical structure and the location of critical points representing the onset of thermal instability, as well as optically thin conditions. It is shown that the temperature in quiescence is likely to be low for most of the matter, and scaling laws are presented for the fundamental properties of the vertically explicit models from which the time scales for various idealized phenomena are derived. The ordering of three disk time scales obtained should allow discrimination among different models.
Cannizzo John Kendall
Wheeler Justin C.
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