A new gravitational wave event reveals a binary black hole merger with total mass 190-265 solar masses, indicating black holes can form via gravitational-wave driven mergers beyond standard stellar channels.
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Statistical combination of sub-threshold post-merger signals from 50-70 BNS events can constrain the maximum mass of hot neutron stars to 11-20% fractional uncertainty, potentially translating to 12-21% on the cold TOV mass.
Score-based diffusion models learn the empirical distribution of real LIGO noise to enable unbiased gravitational-wave parameter estimation under only an additivity assumption.
Simulations demonstrate that Cosmic Explorer can robustly constrain cosmology and host galaxy parameters from GW-FRB associations using luminosity distance-dispersion measure relations without spectroscopic redshifts, unlike the current LIGO-Virgo network.
No coincident GW signals found with long GRBs in O3 run; luminosity distance limits set assuming binary merger powering.
Extended-data Bayesian reanalysis of GW190814 finds no evidence for tertiary-induced line-of-sight acceleration or residual eccentricity due to strong degeneracy between the two effects.
citing papers explorer
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GW231123: a Binary Black Hole Merger with Total Mass 190-265 $M_{\odot}$
A new gravitational wave event reveals a binary black hole merger with total mass 190-265 solar masses, indicating black holes can form via gravitational-wave driven mergers beyond standard stellar channels.
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Sub-threshold post-merger gravitational waves can constrain the hot nuclear equation of state
Statistical combination of sub-threshold post-merger signals from 50-70 BNS events can constrain the maximum mass of hot neutron stars to 11-20% fractional uncertainty, potentially translating to 12-21% on the cold TOV mass.
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Gravitational-Wave Parameter Estimation in non-Gaussian noise using Score-Based Likelihood Characterization
Score-based diffusion models learn the empirical distribution of real LIGO noise to enable unbiased gravitational-wave parameter estimation under only an additivity assumption.
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Cosmological Constraints from GW-FRB Associations without Redshift Measurements for LIGO-Virgo and Cosmic Explorer
Simulations demonstrate that Cosmic Explorer can robustly constrain cosmology and host galaxy parameters from GW-FRB associations using luminosity distance-dispersion measure relations without spectroscopic redshifts, unlike the current LIGO-Virgo network.
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Searching for gravitational waves from compact binary mergers powering long gamma-ray bursts during LIGO-Virgo-KAGRA's O3 run
No coincident GW signals found with long GRBs in O3 run; luminosity distance limits set assuming binary merger powering.
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On the Presence of a Tertiary Compact Object in GW190814
Extended-data Bayesian reanalysis of GW190814 finds no evidence for tertiary-induced line-of-sight acceleration or residual eccentricity due to strong degeneracy between the two effects.