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Efficient large-scale, targeted gravitational-wave probes of supermassive black-hole binaries

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arxiv 2304.03786 v1 pith:QQ6RYC6A submitted 2023-04-07 gr-qc astro-ph.GAastro-ph.HE

Efficient large-scale, targeted gravitational-wave probes of supermassive black-hole binaries

classification gr-qc astro-ph.GAastro-ph.HE
keywords binariesefficientapproximationlarge-scalepulsarsearchessourcessupermassive
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. QuickGWecc: Fast Bayesian pipeline for searching eccentric binaries in pulsar timing array data

    astro-ph.HE 2026-07 conditional novelty 6.0

    QuickGWecc extends the fast QuickCW framework to relativistic eccentric binaries, with projection-parameter likelihood updates taking about 41 microseconds.

  2. Testing General Relativity with Individual Supermassive Black Hole Binaries

    gr-qc 2026-05 unverdicted novelty 6.0

    A framework is developed to test beyond-GR effects in nanohertz continuous waves from individual SMBHBs, deriving modified inter-pulsar correlations, antenna responses, and phase delays for three deviation classes, va...

  3. Testing General Relativity with Individual Supermassive Black Hole Binaries

    gr-qc 2026-05 conditional novelty 6.0

    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...

  4. Fingerprints of Individual Supermassive Black Hole Binaries in Pulsar Timing Arrays

    astro-ph.HE 2026-03 conditional novelty 6.0

    A single supermassive black hole binary imprints a deterministic, direction-dependent correlation fingerprint on pulsar timing arrays, enabling identification via cross-correlations.

  5. Two-Dimensional Pulsar Distance Inference from Nanohertz Gravitational Waves

    gr-qc 2025-12 conditional novelty 6.0

    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.

  6. Expectations for the first supermassive black-hole binary resolved by PTAs II: Milestones for binary characterization

    astro-ph.IM 2025-10 unverdicted novelty 5.0

    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...

  7. Expectations for the first supermassive black-hole binary resolved by PTAs I: Model efficacy

    astro-ph.IM 2025-10 unverdicted novelty 5.0

    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-...