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Evaporation of primordial black holes in the early Universe: Mass and spin distributions

Cheek, Andrew; Heurtier, Lucien; Perez-Gonzalez, Yuber F.; Turner, Jessica

Authors

Andrew Cheek



Abstract

Many cosmological phenomena lead to the production of primordial black holes in the early Universe. These phenomena often create a population of black holes with extended mass and spin distributions. As these black holes evaporate via Hawking radiation, they can modify various cosmological observables, lead to the production of dark matter, modify the number of effective relativistic degrees of freedom, Neff, source a stochastic gravitational wave background and alter the dynamics of baryogenesis. We consider the Hawking evaporation of primordial black holes that feature nontrivial mass and spin distributions in the early Universe. We demonstrate that the shape of such a distribution can strongly affect most of the aforementioned cosmological observables. We outline the numerical machinery we use to undertake this task. We also release a new version of FRISBHEE that handles the evaporation of primordial black holes with an arbitrary mass and spin distribution throughout cosmic history.

Citation

Cheek, A., Heurtier, L., Perez-Gonzalez, Y. F., & Turner, J. (in press). Evaporation of primordial black holes in the early Universe: Mass and spin distributions. Physical Review D, 108(1), Article 015005. https://doi.org/10.1103/physrevd.108.015005

Journal Article Type Article
Acceptance Date Jun 11, 2023
Online Publication Date Jul 6, 2023
Deposit Date Nov 3, 2023
Publicly Available Date Nov 3, 2023
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 108
Issue 1
Article Number 015005
DOI https://doi.org/10.1103/physrevd.108.015005
Public URL https://durham-repository.worktribe.com/output/1876326

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