Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 11, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2019/11/014
Keywords
dark matter theory; primordial black holes; cosmology of theories beyond the SM
Funding
- NASA Astrophysics Theory Grant [NNH12ZDA001N]
- DOE [DE-FG02-85ER40237]
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Models of Co-Decaying dark matter lead to an early matter dominated epoch - prior to BBN - which results in an enhancement of the growth of dark matter substructure. If these primordial structures collapse further they can form primordial black holes providing an additional dark matter candidate. We derive the mass fraction in these black holes (which is not monochromatic) and consider observational constraints on how much of the dark matter could be comprised in these relics. We find that in many cases they can be a significant fraction of the dark matter. Interestingly, the masses of these black holes can be near the solar-mass range providing a new mechanism for producing black holes like those recently detected by LIGO.
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