The vertical structure and stability of alpha model accretion disks

1984 ◽  
Vol 55 ◽  
pp. 367 ◽  
Author(s):  
J. K. Cannizzo ◽  
J. C. Wheeler
2016 ◽  
Vol 817 (1) ◽  
pp. 35 ◽  
Author(s):  
S. Lizano ◽  
C. Tapia ◽  
Y. Boehler ◽  
P. D’Alessio

1987 ◽  
Vol 93 ◽  
pp. 327-330
Author(s):  
E. Meyer-Hofmeister

AbstractWe present results of new vertical structure computations for cool, convective accretion disks. The influence of the uncertainty in the low temperature opacities on the cool branch of the viscosity-surface density relation is investigated. We discuss how the shape of this relation allows a prediction of temperatures in the accretion disk during the onset of an outburst and we compare this with observations for VW Hydri by Hassall (1984).


1989 ◽  
Vol 107 ◽  
pp. 117-126
Author(s):  
I. Hubeny

AbstractA brief review of various theoretical approaches to model accretion disks is presented. Emphasis is given to models that determine self-consistently the structure of a disk together with the radiation field. It is argued that a proper treatment of the vertical structure is essential for calculating theoretical spectra to be compared with observations. In particular, it is shown that hot layers above an accretion disk (sometimes called disk “chromospheres” or “coronae”), whose presence is indicated by recent UV observations of strong emission lines of highly ionized species, may be explained using simple energy balance arguments.


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