A data-driven Bspline model for the binary black hole mass distribution from 137 GW events resolves three peaks and improves H0 precision by 12-21% over parametric alternatives.
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Mind the peak: improving cosmological constraints from GWTC-4.0 spectral sirens using semiparametric mass models
A data-driven Bspline model for the binary black hole mass distribution from 137 GW events resolves three peaks and improves H0 precision by 12-21% over parametric alternatives.