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Spherically symmetric solutions in a FRW background

H. Moradpour

Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), P. O. Box 55134-441, Maragha, Iran

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and

N. Riazi

Physics Department, Shahid Beheshti University, Evin, Tehran 19839, Iran

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https://doi.org/10.1142/S021773231550042XCited by:1 (Source: Crossref)

Abstract

We impose perfect fluid concept along with slow expansion approximation to derive new solutions which, considering non-static spherically symmetric metrics, can be treated as Black Holes (BHs). We will refer to these solutions as Quasi BHs. Mathematical and physical features such as Killing vectors, singularities, and mass have been studied. Their horizons and thermodynamic properties have also been investigated. In addition, relationship with other related works (including McVittie's) are described.

Keywords:

PACS: 04.20.-q, 04.70.-s

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