In this paper, we present an exact model of a spherically symmetric star undergoing dissipative collapse in the form of a radial heat flux. The interior of the star is matched smoothly to the generalized Vaidya line element representing a two-fluid atmosphere comprising null radiation and a string fluid. The influence of the string density on the thermal behavior of the model is investigated by employing a causal heat transport equation of Maxwell-Cattaneo form.
International Journal of Modern Physics D
- Pub Date:
- June 2013
- Singularities and cosmic censorship;
- Exact solutions;
- Relativistic stars: structure stability and oscillations