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Coalescing Compact Binary Parameter Estimation with Gravitational Waves in the Presence of non-Gaussian Transient Noise
Yannick Lecoeuche, Jess McIver, Alan M. Knee +7
Data from gravitational-wave (GW) detectors often contains a high rate of non-Gaussian transient noise, known as glitches. The parameters estimated from GW signals coinciding with…
Inferring the spins of merging black holes in the presence of data-quality issues
Rhiannon Udall, Sophie Bini, Katerina Chatziioannou +5
Gravitational waves from black hole binary mergers carry information about the component spins, but inference is sensitive to analysis assumptions, which may be broken by terrestri…
Glitches far from transient gravitational-wave events do not bias inference
Sophie Hourihane, Katerina Chatziioannou
Non-Gaussian noise in gravitational-wave detectors, known as "glitches," can bias the inferred parameters of transient signals when they occur nearby in time and frequency. These b…
Measuring spin precession from massive black hole binaries with gravitational waves: insights from time-domain signal morphology
Simona J. Miller, Maximiliano Isi, Katerina Chatziioannou +2
Robustly measuring binary black hole spins via gravitational waves is key to understanding these systems' astrophysical origins, but remains challenging -- especially for high-mass…
The anti-aligned spin of GW191109: glitch mitigation and its implications
Rhiannon Udall, Sophie Hourihane, Simona Miller +4
With a high total mass and an inferred effective spin anti-aligned with the orbital axis at the 99.9% level, GW191109 is one of the most promising candidates for a dynamical format…
Assessing and Mitigating the Impact of Glitches on Gravitational-Wave Parameter Estimation: a Model Agnostic Approach
Sudarshan Ghonge, Joshua Brandt, J. M. Sullivan +7
In this paper we investigate the impact of transient noise artifacts, or {\it glitches}, on gravitational-wave inference from ground-based interferometer data, and test how modelin…
How to Detect an Astrophysical Nanohertz Gravitational-Wave Background
Bence Bécsy, Neil J. Cornish, Patrick M. Meyers +93
Analysis of pulsar timing data have provided evidence for a stochastic gravitational wave background in the nHz frequency band. The most plausible source of such a background is th…
Accurate characterization of the stochastic gravitational-wave background with pulsar timing arrays by likelihood reweighting
Sophie Hourihane, Patrick Meyers, Aaron Johnson +2
An isotropic stochastic background of nanohertz gravitational waves creates excess residual power in pulsar-timing-array datasets, with characteristic inter-pulsar correlations des…
Concurrent estimation of noise and compact-binary signal parameters in gravitational-wave data
Cailin Plunkett, Sophie Hourihane, Katerina Chatziioannou
Gravitational-wave parameter estimation for compact binary signals typically relies on sequential estimation of the properties of the detector Gaussian noise and of the binary para…
The curious case of GW200129: interplay between spin-precession inference and data-quality issues
Ethan Payne, Sophie Hourihane, Jacob Golomb +3
Measurement of spin-precession in black hole binary mergers observed with gravitational waves is an exciting milestone as it relates to both general relativistic dynamics and astro…
Accurate modeling and mitigation of overlapping signals and glitches in gravitational-wave data
Sophie Hourihane, Katerina Chatziioannou, Marcella Wijngaarden +3
The increasing sensitivity of gravitational-wave detectors has brought about an increase in the rate of astrophysical signal detections as well as the rate of "glitches"; transient…