Gravitational collapse for a radiating anisotropic fluid

L. S. M. Veneroni, M. F. A. da Silva
2019 International Journal of Modern Physics D  
Interested in the collapse of a radiating star, we study the temporal evolution of a fluid with heat flux and bulk viscosity, including anisotropic pressure. As a starting point, we adopt an initial configuration that satisfies the regularities conditions as well as the energy conditions to a certain range of the mass-radius ratio for the star, defining acceptable models. For this set of models, we verify that the energy conditions remain satisfied until the black hole formation. Astrophysical
more » ... elevant quantities, such as the luminosity perceived by an observer at infinity, the time of event horizon formation and the loss of mass during the collapse are presented.
doi:10.1142/s0218271819500342 fatcat:qlfmkdlycjertjoguzpyy7rtme