Journal
PHYSICS OF THE DARK UNIVERSE
Volume 15, Issue -, Pages 142-147Publisher
ELSEVIER
DOI: 10.1016/j.dark.2016.10.002
Keywords
Primordial black holes; Dark matter; Gravitational waves
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Funding
- Spanish MINECO [FPA2013-47986-03-3P]
- Centro de Excelencia Severo Ochoa Program [SEV-2012-0249]
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The recent detection by Advanced LIGO of gravitational waves (GW) from the merging of a binary black hole system sets new limits on the merging rates of massive primordial black holes (PBH) that could be a significant fraction or even the totality of the dark matter in the Universe. aLIGO opens the way to the determination of the distribution and clustering of such massive PBH. If PBH clusters have a similar density to the one observed in ultra-faint dwarf galaxies, we find merging rates comparable to aLIGO expectations. Massive PBH dark matter predicts the existence of thousands of those dwarf galaxies where star formation is unlikely because of gas accretion onto PBH, which would possibly provide a solution to the missing satellite and too-big-to-fail problems. Finally, we study the possibility of using aLIGO and future GW antennas to measure the abundance and mass distribution of PBH in the range [5-200] M. to 10% accuracy. (C) 2016 Elsevier B.V. All rights reserved.
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