articleThe Astrophysical JournalJun 1, 2023GOLD OA

Constraints on the Cosmic Expansion History from GWTC–3

California Institute of Technology · Tokyo Institute of Technology · +271 more institutions

Indexed incrossrefdatacitedoaj

Abstract

Abstract We use 47 gravitational wave sources from the Third LIGO–Virgo–Kamioka Gravitational Wave Detector Gravitational Wave Transient Catalog (GWTC–3) to estimate the Hubble parameter H ( z ), including its current value, the Hubble constant H 0 . Each gravitational wave (GW) signal provides the luminosity distance to the source, and we estimate the corresponding redshift using two methods: the redshifted masses and a galaxy catalog. Using the binary black hole (BBH) redshifted masses, we simultaneously infer the source mass distribution and H ( z ). The source mass distribution displays a peak around 34 M ⊙ , followed by a drop-off. Assuming this mass scale does not evolve with the redshift results in a H…

No related works found for this paper.

Funding