GW200105 and GW200115 are compatible with a scenario of primordial black hole binary coalescences
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AbstractTwo gravitational wave events, i.e. GW200105 and GW200115, were observed by the Advanced LIGO and Virgo detectors recently. In this work, we show that they can be explained by a scenario of primordial black hole binaries that are formed in the early Universe. The merger rate predicted by such a scenario could be consistent with the one estimated from LIGO and Virgo, even if primordial black holes constitute a fraction of cold dark matter. The required abundance of primordial black holes is compatible with the existing upper limits from microlensing, caustic crossing and cosmic microwave background observations.
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2013 ◽
Vol 22
(05)
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pp. 1350022
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2020 ◽
Vol 70
(1)
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pp. 355-394
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2010 ◽
Vol 19
(08n10)
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pp. 1249-1252
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