Abstract
We model the accretion of gas onto a population of massive primordial black holes in the Milky Way and compare the predicted radio and x-ray emission with observational data. We show that, under conservative assumptions on the accretion process, the possibility that primordial black holes can account for all of the dark matter in the Milky Way is excluded at by a comparison with a Very Large Array radio catalog at 1.4 GHz and at by a comparison with a Chandra x-ray catalog (0.5–8 keV). We argue that this method can be used to identify such a population of primordial black holes with more sensitive future radio and x-ray surveys.
- Received 9 December 2016
DOI:https://doi.org/10.1103/PhysRevLett.118.241101
© 2017 American Physical Society