Black Holes in Bulk Viscous Cosmology

Abstract

We investigate the effects of the accretion of phantom energy with non-zero bulk viscosity onto a Schwarzschild black hole and show that black holes accreting viscous phantom energy will lose mass rapidly compared to the non-viscous case. When matter is incorporated along with the phantom energy, the black holes meet with the same fate as bulk viscous forces dominate matter accretion. If the phantom energy has large bulk viscosity, then the mass of the black hole will reduce faster than in the small viscosity case.

20 pages, 3 figures, accepted for publication in Int. J. Theor. Phys

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• Observational constraints on the equation of state of viscous fluid in $f(R,T)$ gravity
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• Remarks on cosmological bulk viscosity in different epochs
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• Thermodynamics of the most generalized form of Holographic Dark Energy and some particular cases with Corrected Entropies
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