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Gravitational Wave Astronomy: Astrophysical and Cosmological Inferences
source link: https://iphysresearch.github.io/blog/publication/2022-postnov-gravitationalwaveastronomy/
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Gravitational Wave Astronomy: Astrophysical and Cosmological Inferences
Konstantin Postnov, Nikita Mitichkin
November 2022Abstract
We briefly discuss the most prominent results and specific sources detected by gravitational-wave observatories LIGO-Virgo during first three O1-O3 runs, as well as possible astrophysical and cosmological channels of their formation. We show that it is possible to explain the observed correlation between the effective spin of coalescing binary black holes and mass ratio of the components by accretion from the ambient medium onto primordial binary black holes. We also briefly discuss the recent results of searches for stochastic gravitational-wave background in the nano-Hz frequency band by pulsar timing arrays.
Publication
arXiv
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