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arXiv · 1701.07223

Constraints on Primordial Black Holes with Extended Mass Functions

Florian Kuhnel·Katherine Freese
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Abstract

Constraints on primordial black holes in the range $10^{-18} M_{\odot}$ to $10^{3} M_{\odot}$ are reevaluated for a general class of extended mass functions. Whereas previous work has assumed that PBHs are produced with one single mass, instead there is expected to be a range of masses even in the case of production from a single mechanism; constraints therefore change from previous literature. Although tightly constrained in the majority of cases, it is shown that, even under conservative assumptions, primordial black holes in the mass range $10^{-10} M_{\odot}$ to $10^{-8} M_{\odot}$ could still constitute the entirety of the dark matter. This stresses both the importance for a comprehensive reevaluation of all respective constraints that have previously been evaluated only for a monochromatic mass function, and the need to obtain more constraints in the allowed mass range.

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Florian Kuhnel, Katherine Freese. 2017-01-25. Constraints on Primordial Black Holes with Extended Mass Functions. https://doi.org/10.1103/physrevd.95.083508

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