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

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

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. (2023). 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
• Publication Date: Jul 1, 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