X-ray and gamma-ray limits on the primordial black hole abundance from Hawking radiation
The non-observation of extragalactic Hawking radiation from primordial black holes of 1016 g sets a conservative strong bound on their cosmological abundance. We revisit this bound and show how it can be improved (both in mass reach and strength) by an adequate modeling of the combined AGN and blaza...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320304275 |