Spectral siren analysis of 152 GWTC-4.0 black hole mergers with a Gaussian Process mass model, combined with GW170817, gives H0 = 69 (+7/-6) km/s/Mpc at 10% precision.
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Spectral siren cosmology from gravitational-wave observations in GWTC-4.0
Spectral siren analysis of 152 GWTC-4.0 black hole mergers with a Gaussian Process mass model, combined with GW170817, gives H0 = 69 (+7/-6) km/s/Mpc at 10% precision.