Physics
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981gregr..13.1005g&link_type=abstract
General Relativity and Gravitation, Volume 13, Issue 11, pp.1005-1016
Physics
Scientific paper
In this paper we show that if Vaidya's radiation metric is considered from the point of view of kinetic theory in general relativity, the corresponding phase space distribution function can be generalized in a particular way. The new family of spherically symmetric radiation metrics obtained contains Vaidya's as a limiting situation. The Einstein field equations are solved in a “comoving” coordinate system. Two arbitrary functions of a single variable are introduced in the process of solving these equations. Particular examples considered are a stationary solution, a nonvacuum solution depending on a single parameter, and several limiting situations.
Gleiser Reinaldo J.
Kozameh Carlos N.
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