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

2023/04/07 by Maria Charisi, Stephen R. Taylor, Charisi, Maria +5 · 4 citations
Engineering · Physics and Astronomy · #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Astrophysical Phenomena (astro-ph.HE) #Pulsars and Gravitational Waves Research #Radio Astronomy Observations and Technology #Superconducting Materials and Applications

paper · pdf · doi:10.48550/arxiv.2304.03786

openalex publication_date 2023/04/07 · openalex created_date 2023/04/12 · openalex updated_date 2026/08/01

Abstract

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.

Cited by

• Two-Dimensional Pulsar Distance Inference from Nanohertz Gravitational Waves
• Expectations for the first supermassive black-hole binary resolved by PTAs II: Milestones for binary characterization
• Expectations for the first supermassive black-hole binary resolved by PTAs I: Model efficacy
• Targeted search for an individual SMBHB in NANOGrav 15-year and EPTA DR2 data sets

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