Time-dependent solution for a star immersed in a background radiation | Zendy

Hongya Liu | Zendy; Zhang Qiuyang | Zendy

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Time-dependent solution for a star immersed in a background radiation

Author(s) -

Hongya Liu,

Zhang Qiuyang

Publication year - 2002

Publication title -

journal of mathematical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.708

H-Index - 119

eISSN - 1089-7658

pISSN - 0022-2488

DOI - 10.1063/1.1503147

Subject(s) - schwarzschild radius , physics , schwarzschild metric , isotropy , star (game theory) , radiation , exact solutions in general relativity , range (aeronautics) , astrophysics , classical mechanics , optics , gravitation , quantum mechanics , general relativity , materials science , composite material

We study a time-dependent and spherically-symmetric solution with a star-likesource. We show that this solution can be interpreted as an exterior solutionof a contracting star which has a decreasing temperature and is immersed in ahomogenous and isotropic background radiation. Distribution of the temperaturein the fields and close-to Schwarzschild approximation of the solution arestudied. By identifying the radiation with the cosmic background one, we findthat the close-to-Schwarzschild approximate solution is valid in a wide rangein our solar system. Possible experimental tests of the solution are discussedbriefly.Comment: Latex, 7 pages, no figures, to appear in J. Math. Phys.(2002

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