Constraining Primordial Black Hole Fraction at the Galactic Centre using radio observational data
High Energy Astrophysical Phenomena
2020-08-18 v1 Astrophysics of Galaxies
Abstract
Recent gamma-ray and cosmic-ray observations have put strong constraints on the amount of primordial black holes (PBHs) in our universe. In this article, we use the archival radio data of the inner Galactic Centre to constrain the PBH to dark matter ratio for three different PBH mass distributions including monochromatic, log-normal and power-law. We show that the amount of PBHs only constitutes a very minor component of dark matter at the Galactic Centre for a large parameter space.
Cite
@article{arxiv.2007.05677,
title = {Constraining Primordial Black Hole Fraction at the Galactic Centre using radio observational data},
author = {Man Ho Chan and Chak Man Lee},
journal= {arXiv preprint arXiv:2007.05677},
year = {2020}
}
Comments
Accepted for publication in MNRAS