Abstract
Only recently has the use of irradiated stellar atmosphere models become practical in the study of close binary systems. Aspects of this problem, such as geometrical illumination from a finite solid angle, the transport of polarized radiation, and multiple-iterative heating between the stars, must be included for a realistic treatment. These concepts are developed and applied to grids of plane-parallel stellar atmospheres computed on modified Roche equipotentials. The reflection effect between the stars, actually a radiative heating of the outer layers of the atmosphere, is iterated to consistency, and the incident moments of the radiation field are integrated numerically
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