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GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation
A. G. Abac et al 2026 The Astrophysical Journal Letters 1007 .
Caption: Figure 6.
Left panel: reconstructed source-frame primary-mass distribution (solid curve: median; shaded region: 90% CI). Right panel: reconstructed CBC merger rate as defined in the main text. Results in both panels are obtained from dark siren analyses using the PLP, MLTP, and the FULLPOP-4.0 mass models and the GLADE+ K band in the luminosity-weighting case.
© 2026. The Author(s). Published by the American Astronomical Society.