Regular Article - Theoretical Physics
Evolution of a Schwarzschild black hole in phantom-like Chaplygin gas cosmologies
Center for Advanced Mathematics and Physics, National University of Sciences and Technology, E&ME campus, Peshawar road, Rawalpindi, 46000, Pakistan
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Revised: 18 November 2008
Published online: 20 May 2009
In the classical relativistic regime, the accretion of phantom energy onto a black hole reduces the mass of the black hole. In this context, we have investigated the evolution of a Schwarzschild black hole in the standard model of cosmology using the phantom-like modified variable Chaplygin gas and the viscous generalized Chaplygin gas. The corresponding expressions for accretion time scale and evolution of mass have been derived. Our results indicate that the mass of the black hole will decrease if the accreting phantom Chaplygin gas violates the dominant energy condition and will increase in the opposite case. Thus, our results are in agreement with the results of Babichev et al. who first proposed this scenario.
© Springer-Verlag , 2009