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The Evaporating Primordial Black Hole Fraction in Cool-core Galaxy Clusters by Lee, Chak Man; Chan, Man Ho is a scholarly article available to read on EtoBox.

What is The Evaporating Primordial Black Hole Fraction in Cool-core Galaxy Clusters about?

Recent studies of gamma-ray, cosmic-ray and radio data put stringent constraints on the fraction of primordial black holes (PBHs) in our universe. In this article, we propose a new indirect method in using the X-ray luminosity data of cool-core clusters to constrain the evaporating PBH fraction for the monochromatic, log-normal and power-law mass distributions. The present results show that the amount of evaporating PBHs only constitutes a minor component of dark matter for a large parameter space. The constraints are consistent with and close to that obtained from other cosmic-ray and multi-wavelength observations.

Author

Lee, Chak Man; Chan, Man Ho

Published

2021

Language

EN