• EQUILIBRIUM STRUCTURE OF DIFFERENTIALLY ROTATING AND TIDALLY DISTORTED PRASAD MODEL INCLUDING MASS VARIATION INSIDE THE STAR

Abstract

In this paper we propose suitable modifications in the concept of Roche equipotentials to account for the effect of mass variation inside the star on its equipotential surfaces and use this in conjunction with Kippenhahn and Thomas4 approach, in a manner earlier used by Mohan et. al.[12], to incorporate the effects of differentially rotating and tidally distorted stellar models of stars using the law of the type where , are numerical constants and s is the distance of rotating fluid element from the axis of rotation. The proposed method has been used to compute the structure parameters of differentially rotating and tidally distorted Prasad model of the star.