Primordial Black Holes Around Us Now, Long Before, and Far away
A.D. Dolgov
TL;DR
This paper reviews recent astronomical data suggesting most observed black holes are primordial, discusses their mass spectrum fitting a log-normal distribution, and describes a formation model for primordial black holes.
Contribution
It provides a comprehensive review of observational evidence supporting primordial black holes and introduces a log-normal formation model for their mass spectrum.
Findings
Observed black holes are likely primordial.
PBH mass spectrum fits a log-normal distribution.
A formation model for PBH is described.
Abstract
Recent astronomical data on Black hole observations are reviewed. The arguments in favor that the observed black holes are predominantly primordial (PBH) are presented. The mass spectrum of PBH is best fit to the log-normal one. A model of PBH formation with log-normal spectrum is briefly described.
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