Gravitational Perfect Fluid Collapse With Cosmological Constant

Details Gravitational Perfect Fluid Collapse With Cosmological Constant Gravitational Perfect Fluid Collapse With Cosmological Constant

2006-10-09

arxiv.org/abs/gr-qc/0610033v1

Mod.Phys.Lett.A22:1493-1502,2007; Mod.Phys.Lett.A22:2947-2948(Addendum),2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LaTex 13 pages, accepted for publication in Mod. Phys. Lett. A

Scientific paper

10.1142/S0217732307021834 10.114

In this paper, the effect of a positive cosmological constant on spherically symmetric collapse with perfect fluid has been investigated. The matching conditions between static exterior and non-static interior spacetimes are given in the presence of a cosmological constant. We also study the apparent horizons and their physical significance. It is concluded that the cosmological constant slows down the collapse of matter and hence limit the size of the black hole. This analysis gives the generalization of the dust case to the perfect fluid. We recover the results of the dust case for $p=0$.

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