Radiating Collapse with Vanishing Weyl stresses

Details Radiating Collapse with Vanishing Weyl stresses Radiating Collapse with Vanishing Weyl stresses

2004-08-09

arxiv.org/abs/astro-ph/0408148v1

Int.J.Mod.Phys. D14 (2005) 667-676

Astronomy and Astrophysics

Astrophysics

10 pages, submitted to IJMP-D

Scientific paper

10.1142/S0218271805006584

In a recent approach in modelling a radiating relativistic star undergoing gravitational collapse the role of the Weyl stresses was emphasised. It is possible to generate a model which is physically reasonable by approximately solving the junction conditions at the boundary of the star. In this paper we demonstrate that it is possible to solve the Einstein field equations and the junction conditions exactly. This exact solution contains the Friedmann dust solution as a limiting case. We briefly consider the radiative transfer within the framework of extended irreversible thermodynamics and show that relaxational effects significantly alter the temperature profiles.

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