Surrounded Vaidya black holes: apparent horizon properties

TL;DR

This paper investigates the thermodynamics and evolution of apparent horizons in Vaidya black holes surrounded by different cosmological fields, highlighting how these fields influence black hole properties compared to empty backgrounds.

Contribution

It provides a detailed analysis of how various surrounding cosmological fields affect the apparent horizon features of dynamical Vaidya black holes.

Findings

Surrounding fields alter the thermodynamical properties of black holes.

Different fields impact the evolution of apparent horizons.

Comparison with empty background black holes reveals significant differences.

Abstract

We study the thermodynamical features and dynamical evolutions of various apparent horizons associated with the Vaidya evaporating black hole surrounded by the cosmological fields of dust, radiation, quintessence, cosmological constant-like and phantom. In this regard, we address in detail how do these surrounding fields contribute to the characteristic features of a surrounded dynamical black hole in comparison to a dynamical black hole in an empty background.