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Evolving Black Hole Horizons in General Relativity and Alternative Gravity

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Author(s): Valerio Faraoni

Journal: Galaxies
ISSN 2075-4434

Volume: 1;
Issue: 3;
Start page: 114;
Date: 2013;
Original page

Keywords: black holes | evolving horizons | apparent horizons

ABSTRACT
From the microscopic point of view, realistic black holes are time-dependent and the teleological concept of the event horizon fails. At present, the apparent or trapping horizon seem to be 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) are useful as toy models for research on various aspects of black hole physics.
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