A self-similar dynamics in viscous spheres

Barreto, W; Ovalle, J; Rodriguez, B

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