Year: 2025
Type: article
Abstract: ABSTRACT In this paper, we explore the possibility of using galaxy cluster catalogues to provide redshift support for a gravitational-wave dark standard siren measurement of the Hubble constant $H_0$. We adapt the cosmology inference pipeline gwcosmo to handle galaxy cluster catalogues. Together with binary black holes from the Third Gravitational-Wave Transient Catalogue (GWTC-3), we use galaxy cluster data from the Second Planck Catalogue of Sunyaev–Zel’dovich Sources (PSZ2) and the eROSITA All Sky Survey (eRASS) catalogues. With these catalogues, we obtain $H_0 = 77^{+10}_{-10}$ and $81^{+8}_{-8} \, \text{km} \, \text{s}^{-1} \,\text{Mpc}^{-1}$, respectively, which demonstrates improvements on precision by factors of 10 per cent and 38 per cent, respectively over the traditional galaxy catalogue result. This exploratory work paves the way towards precise and accurate cosmography making use of distant compact binary mergers from upcoming observing runs of the LIGO–Virgo–KAGRA detector network and future gravitational-wave observatories.
Institutions: Ghent University, Eötvös Loránd University, Centre National de la Recherche Scientifique, Université Toulouse III - Paul Sabatier, Institut National de Physique Nucléaire et de Physique des Particules, Laboratoire des 2 Infinis Toulouse, Université de Toulouse, Hungarian Academy of Sciences
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,046
Awards: The Operation and Maintenance of the Laser Interferometer Gravitational Wave Observatory (LIGO), G1246260098, The Construction of the Advanced Laser Interferometer Gravitational Wave Observatory (AdvLIGO), G4694265444, G4941885930, Bringing together the modelled and the unmodelled, G5656902020
OpenAlex ID: W4413814877