Time-Dependent Solution for a Star Immersed in a Background Radiation
arXiv:gr-qc/0206036 · doi:10.1063/1.1503147
Abstract
We study a time-dependent and spherically-symmetric solution with a star-like source. We show that this solution can be interpreted as an exterior solution of a contracting star which has a decreasing temperature and is immersed in a homogenous and isotropic background radiation. Distribution of the temperature in the fields and close-to Schwarzschild approximation of the solution are studied. By identifying the radiation with the cosmic background one, we find that the close-to-Schwarzschild approximate solution is valid in a wide range in our solar system. Possible experimental tests of the solution are discussed briefly.
Latex, 7 pages, no figures, to appear in J. Math. Phys.(2002)