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Efficient large-scale, targeted gravitational-wave probes of supermassive black-hole binaries
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Efficient large-scale, targeted gravitational-wave probes of supermassive black-hole binaries
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Supermassive black hole binaries are promising sources of low-frequency gravitational waves (GWs) and bright electromagnetic emission. Pulsar timing array searches for resolved binaries are complex and computationally expensive and so far limited to only a few sources. We present an efficient approximation that empowers large-scale targeted multi-messenger searches by neglecting GW signal components from the pulsar term. This Earth-term approximation provides similar constraints on the total mass and GW frequency of the binary, yet is $>100$ times more efficient.
Forward citations
Cited by 7 Pith papers
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QuickGWecc: Fast Bayesian pipeline for searching eccentric binaries in pulsar timing array data
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Testing General Relativity with Individual Supermassive Black Hole Binaries
Beyond-GR polarization modes in a single supermassive black hole binary show up linearly (not quadratically) in pulsar-timing cross-correlations, massive-graviton dispersion shifts antenna patterns and pulsar-term pha...
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Fingerprints of Individual Supermassive Black Hole Binaries in Pulsar Timing Arrays
A single supermassive black hole binary imprints a deterministic, direction-dependent correlation fingerprint on pulsar timing arrays, enabling identification via cross-correlations.
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Two-Dimensional Pulsar Distance Inference from Nanohertz Gravitational Waves
A two-dimensional joint-posterior analysis of multiple nanohertz gravitational-wave sources can infer pulsar distances below the parsec level in simulated SKA-era pulsar timing arrays.
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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 prec...
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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-...
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