Condition for Primordial Black Hole Formation in Randall-Sundrum Cosmology
Astrophysics
2009-11-10 v2
Abstract
We consider spherical collapse in the Randall-Sundrum type II model and estimate the critical over density for black hole formation in the radiation dominated era. It is found that when (density)-term is dominant in the modified Friedmann equation the critical density is smaller than in the standard cosmology, which implies that PBHs are more easily produced in the Randall-Sundrum model.
Keywords
Cite
@article{arxiv.astro-ph/0403668,
title = {Condition for Primordial Black Hole Formation in Randall-Sundrum Cosmology},
author = {Masahiro Kawasaki},
journal= {arXiv preprint arXiv:astro-ph/0403668},
year = {2009}
}
Comments
5 pages, no figure, revised version (a footnote and some references are added)