Primordial Black Hole Scenario for the Gravitational-Wave Event GW150914.

  title={Primordial Black Hole Scenario for the Gravitational-Wave Event GW150914.},
  author={Misao Sasaki and Teruaki Suyama and Takahiro Tanaka and Shuichiro Yokoyama},
  journal={Physical review letters},
  volume={117 6},
We point out that the gravitational-wave event GW150914 observed by the LIGO detectors can be explained by the coalescence of primordial black holes (PBHs). It is found that the expected PBH merger rate would exceed the rate estimated by the LIGO Scientific Collaboration and the Virgo Collaboration if PBHs were the dominant component of dark matter, while it can be made compatible if PBHs constitute a fraction of dark matter. Intriguingly, the abundance of PBHs required to explain the suggested… 

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