Detection of GW190814 from the coalescence of a 23 solar-mass black hole and a 2.6 solar-mass compact object, the most unequal-mass binary yet observed with gravitational waves.
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Statistical redshifts inferred from mass spectrum features and galaxy catalogs for 142 GW events yield H0 = 76.6 km s^{-1} Mpc^{-1} and Ξ0 = 1.2, consistent with general relativity.
No significant cosmological anisotropy is found in the latest GW O4a and GRBWeb datasets using angular power spectra and two-point correlation functions, consistent with the cosmological principle.
A robust statistical test for galaxy catalog magnitude completeness improves H0 constraints by 1.3-8.6% in GWTC-1 analyses but shows no benefit for GWTC-3 due to limited K-band coverage in GLADE+.
citing papers explorer
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GW190814: Gravitational Waves from the Coalescence of a 23 M$_\odot$ Black Hole with a 2.6 M$_\odot$ Compact Object
Detection of GW190814 from the coalescence of a 23 solar-mass black hole and a 2.6 solar-mass compact object, the most unequal-mass binary yet observed with gravitational waves.
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GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation
Statistical redshifts inferred from mass spectrum features and galaxy catalogs for 142 GW events yield H0 = 76.6 km s^{-1} Mpc^{-1} and Ξ0 = 1.2, consistent with general relativity.
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Testing cosmological isotropy with gravitational waves and gamma-ray bursts
No significant cosmological anisotropy is found in the latest GW O4a and GRBWeb datasets using angular power spectra and two-point correlation functions, consistent with the cosmological principle.
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Implementing a Robust Test of Galaxy Catalogue Completeness for Dark Siren Measurements of the Hubble Constant
A robust statistical test for galaxy catalog magnitude completeness improves H0 constraints by 1.3-8.6% in GWTC-1 analyses but shows no benefit for GWTC-3 due to limited K-band coverage in GLADE+.