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arXiv · 2011.03036

Archival searches for stellar-mass binary black holes in LISA

Becca Ewing·Surabhi Sachdev·Ssohrab Borhanian·B. S. Sathyaprakash
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Abstract

Stellar-mass binary black holes will sweep through the frequency band of the Laser Interferometer Space Antenna (LISA) for months to years before appearing in the audio-band of ground-based gravitational-wave detectors. One can expect several tens of these events up to a distance of $500 \,\mathrm{Mpc}$ each year. The LISA signal-to-noise ratio for such sources even at these close distances will be too small for a blind search to confidently detect them. However, next generation ground-based gravitational-wave detectors, expected to be operational at the time of LISA, will observe them with signal-to-noise ratios of several thousands and measure their parameters very accurately. We show that such high fidelity observations of these sources by ground-based detectors help in archival searches to dig tens of signals out of LISA data each year.

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Becca Ewing, Surabhi Sachdev, Ssohrab Borhanian, B. S. Sathyaprakash. 2020-11-05. Archival searches for stellar-mass binary black holes in LISA. https://doi.org/10.1103/physrevd.103.023025

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