# Eliminating the LIGO bounds on primordial black hole dark matter

@article{Bhm2020EliminatingTL,
title={Eliminating the LIGO bounds on primordial black hole dark matter},
author={C. B{\oe}hm and A. Kobakhidze and Ciaran A.J. O'Hare and Zachary S.C. Picker and M. Sakellariadou},
journal={Journal of Cosmology and Astroparticle Physics},
year={2020},
volume={2021}
}
Primordial black holes (PBHs) in the mass range (30–100) M⊙ are interesting candidates for dark matter but are tightly constrained by the LIGO merger rate. In deriving these constraints, PBHs were treated as constant Schwarzschild masses. A careful analysis of cosmological black holes however leads to a time-dependent effective mass. This implies stricter conditions for binary formation, so that the binaries formed merge well before LIGO's observations. The observed binaries are those… Expand
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