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Forming sub-horizon black holes at the end of inflation

Lyth, D. H. and Malik, K. A. and Sasaki, M. and Zaballa, I. (2006) Forming sub-horizon black holes at the end of inflation. Journal of Cosmology and Astroparticle Physics.

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Abstract

Previous authors have calculated the mass function of primordial black holes only on scales which are well outside the horizon at the end of inflation. Here we extend the calculation to sub-horizon scales, on which the density perturbation never becomes classical. Regarding the formation of black holes as a 'measurement' of the (high peaks) of the density perturbation, we estimate a mass function by assuming that black holes form as soon as inflation ends, in those rare regions where the Bardeen potential exceeds a threshold value of Ψc simeq 0.5.

Item Type: Article
Journal or Publication Title: Journal of Cosmology and Astroparticle Physics
Uncontrolled Keywords: cosmological perturbation theory ; inflation
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 9629
Deposited By: Mr Michael Dunne
Deposited On: 17 Jun 2008 12:23
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 18:40
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/9629

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