Irradiation effects in close binary stars

Abstract

We studied the reflection effect in 2-dimensional geometry to see how the field will change if we calculate the reflected radiation by the transfer equation in a close binary system. The reflected radiation is calculated from the extended surface of the components of a close binary system assuming 3-dimensional Cartesian coordinate geometry and circular orbits. The specific intensity of the radiation field is estimated along the line of sight for an observer at infinity. It appears that radiation field changes depending upon the position of the secondary component.