Cosmological Black Holes

Details Cosmological Black Holes Cosmological Black Holes

2001-01-30

arxiv.org/abs/gr-qc/0101120v2

Gen.Rel.Grav. 34 (2002) 2089-2099

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, new completely revised version, to appear on GRG

Scientific paper

In this paper we propose a model for the formation of the cosmological voids. We show that cosmological voids can form directly after the collapse of extremely large wavelength perturbations into low-density black holes or cosmological black holes (CBH). Consequently the voids are formed by the comoving expansion of the matter that surrounds the collapsed perturbation. It follows that the universe evolves, in first approximation, according to the Einstein-Straus cosmological model. We discuss finally the possibility to detect the presence of these black holes through their weak and strong lensing effects and their influence on the cosmic background radiation.

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