COMPOSITION OF STARS OBEYING A GENERALIZED DIFFERENTIAL ROTATION LAW USING MASS VARIATION

In this paper, our goal is to enumerate the equipoise structures of differentially rotating (DR) stars using mass variation (MV) inside the star, whose angular velocity changes along the axis of rotation as well as in directions perpendicular to it. On the subject of mass variation (MV) and its analogous surfaces within star interiors. By using a Kippenhahn and Thomas (KT) approach in conjunction with accurate results on Roche-equipotential (RE), the distortional effects on the structures of such gaseous spheres may be accounted using the law of the types 2 2 1 2 2 0 2 2 0 1 2 4 2 2 4 1 2 0 2  = c + c .s + c z + 2c c s + 2c c z + 2c c s z . Calculation have been performed to obtain equilibrium structures of differentially rotating for polytropic indices 1.5, 3.0 and 4.0