THERMAL EVOLUTION OF A RADIATING ANISOTROPIC STAR WITH SHEAR-Reference-Cited by-同舟云学术

THERMAL EVOLUTION OF A RADIATING ANISOTROPIC STAR WITH SHEAR

Published:2006-07 Issue:07 Volume:15 Page:1053-1065
ISSN:0218-2718
Container-title:International Journal of Modern Physics D
language:en
Short-container-title:Int. J. Mod. Phys. D

Author:

NAIDU N. F.¹,GOVENDER M.¹,GOVINDER K. S.¹

Affiliation:

1. Astrophysics and Cosmology Research Unit, School of Mathematical Sciences, University of KwaZulu-Natal, Durban 4041, South Africa

Abstract

We study the effects of pressure anisotropy and heat dissipation in a spherically symmetric radiating star undergoing gravitational collapse. An exact solution of the Einstein field equations is presented in which the model has a Friedmann-like limit when the heat flux vanishes. The behavior of the temperature profile of the evolving star is investigated within the framework of causal thermodynamics. In particular, we show that there are significant differences between the relaxation time for the heat flux and the relaxation time for the shear stress.

Publisher

World Scientific Pub Co Pte Lt

Subject

Space and Planetary Science,Astronomy and Astrophysics,Mathematical Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218271806008760

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