Primordial black holes and the Sunyaev-Zel'dovich effect
General Relativity and Quantum Cosmology
2023-01-20 v1
Abstract
Primordial black holes are a popular candidate for dark matter. In the mass regime where their conjectured Hawking evaporation is significant, they have been subject to many constraints via X-rays, gamma-rays, and even radio emission. Previously the Sunyaev-Zel'dovich effect has been considered to place further limits on the M > 10M? primordial black hole abundance via the effects of their accretion of ambient gas. In this work, we will present a novel and robust means of placing abundance limits on low-mass black holes, using the Sunyaev-Zel'dovich effect induced by electrons produced via their Hawking radiation within galaxy clusters.
Keywords
Cite
@article{arxiv.2301.08049,
title = {Primordial black holes and the Sunyaev-Zel'dovich effect},
author = {Justine Tarrant and Geoff Beck},
journal= {arXiv preprint arXiv:2301.08049},
year = {2023}
}
Comments
5 pages, 1 figure