A self-similar dynamics in viscous spheres
Abstract
We study the evolution of radiating and viscous fluid spheres assuming an additional homothetic symmetry on the spherically symmetric spacetime. We match a very simple solution to the symmetry equations with the exterior one (Vaidya). We then obtain a system of two ordinary differential equations which rule the dynamics, and find a self-similar collapse which is shear-free and with a barotropic equation of state. Considering a huge set of initial self-similar dynamics states, we work out a model with an acceptable physical behavior.
Más información
Título según WOS: | ID WOS:000071519200002 Not found in local WOS DB |
Título de la Revista: | GENERAL RELATIVITY AND GRAVITATION |
Volumen: | 30 |
Número: | 1 |
Editorial: | SPRINGER/PLENUM PUBLISHERS |
Fecha de publicación: | 1998 |
Página de inicio: | 15 |
Página final: | 26 |
DOI: |
10.1023/A:1018812714524 |
Notas: | ISI |