EPTA second data release reports Bayes factor of 60 for an isotropic nanohertz GWB in the 10.3-year subset, with amplitude (2.5±0.7)×10^{-15} at 1 yr^{-1} when spectral index is fixed at 13/3.
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Simulations of continuous-wave searches show that PTA data first constrain GW frequency and strain amplitude together, then sky location, with chirp mass and inclination following later for evolving sources, with precision depending on source frequency and sky position.
Simulations of PTA data show that a full gravitational-wave signal template achieves the highest Bayes factors and most robust parameter estimation for individual supermassive black hole binaries compared to an Earth-term template and a novel Spike Pixel cross-correlation model.
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The second data release from the European Pulsar Timing Array III. Search for gravitational wave signals
EPTA second data release reports Bayes factor of 60 for an isotropic nanohertz GWB in the 10.3-year subset, with amplitude (2.5±0.7)×10^{-15} at 1 yr^{-1} when spectral index is fixed at 13/3.
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Expectations for the first supermassive black-hole binary resolved by PTAs II: Milestones for binary characterization
Simulations of continuous-wave searches show that PTA data first constrain GW frequency and strain amplitude together, then sky location, with chirp mass and inclination following later for evolving sources, with precision depending on source frequency and sky position.
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Expectations for the first supermassive black-hole binary resolved by PTAs I: Model efficacy
Simulations of PTA data show that a full gravitational-wave signal template achieves the highest Bayes factors and most robust parameter estimation for individual supermassive black hole binaries compared to an Earth-term template and a novel Spike Pixel cross-correlation model.