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Primordial black hole constraints on non-gaussian inflation models | | P. P. Avelino
; | | Date: |
3 Oct 2005 | | Subject: | astro-ph gr-qc hep-ph hep-th | | Abstract: | We determine the abundance of primordial black holes (PBHs) formed in the context of non-gaussian models with primordial density perturbations. We consider models with a renormalized $chi^2$ probability distribution function parametrized by the number, $
u$, of degrees of freedom. We show that if $
u$ is not too large then the PBH abundance will be altered by several orders of magnitude with respect to the standard gaussian result obtained in the $
u o infty$ limit. We also study the dependence of the spectral index constraints on the nature of the cosmological perturbations for a power-law primordial power spectrum. | | Source: | arXiv, astro-ph/0510052 | | Services: | Forum | Review | PDF | Favorites | |
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