HEAT-TRANSPORT IN AN INHOMOGENEOUS SPHERICALLY SYMMETRICAL UNIVERSE

Authors
TRIGINER J PAVON D
Citation
J. Triginer et D. Pavon, HEAT-TRANSPORT IN AN INHOMOGENEOUS SPHERICALLY SYMMETRICAL UNIVERSE, Classical and quantum gravity, 12(3), 1995, pp. 689-698
Citations number
24
Categorie Soggetti
Physics
Journal title
Classical and quantum gravity → ACNP
ISSN journal
02649381
Volume
12
Issue
3
Year of publication
1995
Pages
689 - 698
Database
ISI
SICI code
0264-9381(1995)12:3<689:HIAISS>2.0.ZU;2-A
Abstract
The evolution of an inhomogeneous spherically symmetric cosmological m odel proposed by Modak is analysed assuming a generalized heat transpo rt equation. Analytical solutions are found after adopting reasonable expressions for the coefficient of heat conductivity and relaxation ti me. In one of the cases the expanding universe geometry tends to a qua si-flat Friedmann-Robertson-Walker one. The physical behaviour of such a universe is analysed together with the energy conditions.