The Evaporating Primordial Black Hole Fraction in Cool-core Galaxy Clusters

The Evaporating Primordial Black Hole Fraction in Cool-core Galaxy Clusters

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...

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Veröffentlicht in:The Astrophysical journal 2021-05, Vol.912 (1), p.24
Hauptverfasser: Lee, Chak Man, Chan, Man Ho
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Sprache:eng
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Astrophysics
Black holes
Cosmic rays
Dark matter
Evaporation
Galactic clusters
Galaxies
Gamma rays
Luminosity
Primordial black holes
Stars & galaxies
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description 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 multiwavelength observations.
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subjects Astrophysics
Black holes
Cosmic rays
Dark matter
Evaporation
Galactic clusters
Galaxies
Gamma rays
Luminosity
Primordial black holes
Stars & galaxies
title The Evaporating Primordial Black Hole Fraction in Cool-core Galaxy Clusters
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