The Shah-Vaidya charged cosmological black hole metric is shown to be an exact solution of Einstein-Maxwell equations with a cuscuton field, and its causal structure is classified into four parameter regions with different horizon counts and naked singularities.
Evolving black hole horizons in General Relativity and alternative gravity
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abstract
From the microscopic point of view, realistic black holes are time-dependent and the teleological concept of event horizon fails. At present, the apparent or the trapping horizon seem its best replacements in various areas of black hole physics. We discuss the known phenomenology of apparent and trapping horizons for analytical solutions of General Relativity and alternative theories of gravity. These specific examples (we focus on spherically symmetric inhomogeneities in a background cosmological spacetime) may be useful as toy models for research on various aspects of black hole physics.
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gr-qc 1years
2019 1verdicts
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Charged cosmological black holes: a thorough study of a family of solutions
The Shah-Vaidya charged cosmological black hole metric is shown to be an exact solution of Einstein-Maxwell equations with a cuscuton field, and its causal structure is classified into four parameter regions with different horizon counts and naked singularities.