Cosmological black holes as voids progenitors. I. Simulations

Details Cosmological black holes as voids progenitors. I. Simulations Cosmological black holes as voids progenitors. I. Simulations

2005-07-19

arxiv.org/abs/astro-ph/0507437v1

Gen.Rel.Grav.39:1551-1562,2007

Astronomy and Astrophysics

Astrophysics

5 pages, 5 figures, submitted to MNRAS

Scientific paper

10.1007/s10714-007-0485-4

Cosmological black holes (CBH), i.e. black holes with masses larger than $10^{14} solar masses, have been proposed as possible progenitors of galaxy voids (Stornaiolo 2002). The presence of a CBH in the central regions of a void should induce significant gravitational lensing effects and in this paper we discuss such gravitational signatures using simulated data. These signatures may be summarized as follows: i) a blind spot in the projected position of the CBH where no objects can be detected; ii) an excess of faint secondary images; iii) an excess of double images having a characteristic angular separation. All these signatures are shown to be detectable in future deep surveys.

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