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Investigating formation condition of primordial black holes for generalized initial perturbation profiles

Primordial black holes (PBHs) are an important tool in cosmology to probe the primordial spectrum of small-scale curvature perturbations that reenter the cosmological horizon during radiation domination epoch. We numerically solve the evolution of spherically symmetric highly perturbed configurations to clarify the criteria of PBHs formation using a wide class of curvature profiles characterized by five parameters. It is shown that formation or non-formation of PBHs is determined essentialy by only two master parameters.

preprint2014arXivOpen access
Tomohiro NakamaTomohiro HaradaA. G. PolnarevJun'ichi Yokoyama
gr-qc
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Open access4 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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Tomohiro NakamaTomohiro HaradaA. G. PolnarevJun'ichi Yokoyama

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