ECLIPSES IN CATACLYSMIC VARIABLES WITH STATIONARY ACCRETION DISKS .4.ON THE PECULIAR T(R) DISTRIBUTIONS

Analysis of eclipse light curves, using the MEM technique, allows to d etermine the disk's surface brightness distribution. For stationary ac cretion systems the resulting T(R) distributions deviate significantly from those predicted by the theory for M = const. Using the observati onal evidence and model calculations it is shown that for systems with inclinations larger than about i = 75 - 80-degrees such peculiar T(R) distributions are largely an artifact resulting from the assumption o f a flat disk. This effect, however, cannot be responsible for small d eviations shown by the T(R) distributions for objects with i = 70 - 75 -degrees. It is suggested that the T(R) distributions may also include an effect of the heating of the disk's outer parts by the stream coll ision. This could explain deviations observed in systems with lower in clinations.