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arXiv · 2304.03786

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

Maria Charisi·Stephen R. Taylor·Caitlin A. Witt·Jessie Runnoe
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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.

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Maria Charisi, Stephen R. Taylor, Caitlin A. Witt, Jessie Runnoe. 2023-04-07. Efficient large-scale, targeted gravitational-wave probes of supermassive black-hole binaries. https://arxiv.org/abs/2304.03786

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