Weyssenhoff fluid sphere models in Einstein–Cartan theory

Abstract

We obtain three models for geodesic flows and three models for non-geodesic flows of Weyssenhoff fluid considering it as the source of gravitation and spin in the Einstein–Cartan field equations. Influence of spin on the pressure, density, equation of state, and the kinematical parameters is observed in both geodesic and non-geodesic models.