TY - JOUR

T1 - Gravitational-Wave Astronomy: Astrophysical and Cosmological Results

AU - Postnov, K. A.

AU - Mitichkin, N. A.

N1 - This work received support from the Russian Science Foundation, grant no. 22-12-00103. NAM also acknowledges the support from the BASIS foundation through grant #22-2-10-2-1.

PY - 2023/6

Y1 - 2023/6

N2 - We briefly discuss the most prominent results and specific sources detected by LIGO–Virgo gravitational-wave observatories during the 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 nanohertz frequency band by pulsar timing arrays.

AB - We briefly discuss the most prominent results and specific sources detected by LIGO–Virgo gravitational-wave observatories during the 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 nanohertz frequency band by pulsar timing arrays.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85163342549&origin=inward&txGid=a2e4e543302f668c47a180b1a251de27

UR - https://www.mendeley.com/catalogue/d9c83c9f-a1b8-3faa-a69b-8b2d2d0ea920/

U2 - 10.1134/S1547477123030536

DO - 10.1134/S1547477123030536

M3 - Article

VL - 20

SP - 213

EP - 217

JO - Physics of Particles and Nuclei Letters

JF - Physics of Particles and Nuclei Letters

SN - 1547-4771

IS - 3

ER -