期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 497, 期 1, 页码 1212-1216出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/staa1966
关键词
dark matter; black hole physics
资金
- Research Grants Council of the Hong Kong Special Administrative Region, China [EdUHK 28300518]
Recent gamma-ray and cosmic-ray observations have put strong constraints on the amount of primordial black holes (PBHs) in our universe. In this paper, 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, lognormal, 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.
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