Near-Critical Gravitational Collapse and the Initial Mass Function of Primordial Black Holes

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dc.creatorNiemeyer, J. C.
dc.creatorJedamzik, K.
dc.date1997-09-09
dc.date1998-05-13
dc.date.accessioned2026-07-07T10:31:46Z
dc.date.available2026-07-07T10:31:46Z
dc.descriptionThe recent discovery of critical phenomena arising in gravitational collapse near the threshold of black hole formation is used to estimate the initial mass function of primordial black holes (PBHs). It is argued that the universal scaling relation between black hole mass and initial perturbation found for a variety of collapsing space-times also applies to PBH formation, indicating the possibility of the formation of PBHs with masses much smaller than one horizon mass. Owing to the natural fine-tuning of initial conditions by the exponential decline of the probability distribution for primordial density fluctuations, sub-horizon mass PBHs are expected to form at all epochs. This result suggests that the constraints on the primordial fluctuation spectrum based on the abundance of PBHs at different mass scales may have to be revisited.
dc.description4 pages, uses revtex, also available at http://bigwhirl.uchicago.edu/jcn/pub_pbh.html . To appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/astro-ph/9709072
dc.identifierhttp://arxiv.org/abs/astro-ph/9709072
dc.identifierPhys.Rev.Lett.80:5481-5484,1998
dc.identifierdoi:10.1103/PhysRevLett.80.5481
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178524
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleNear-Critical Gravitational Collapse and the Initial Mass Function of Primordial Black Holes
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