Metric assisted stochastic sampling search for gravitational waves from binary black hole mergers

Abstract

We present a novel gravitational-wave detection algorithm that conducts a matched-filter search stochastically across the compact binary parameter space rather than relying on a fixed bank of template waveforms. This technique is competitive with standard template-bank-driven pipelines in both computational cost and sensitivity. However, the complexity of the analysis is simpler, allowing for easy configuration and horizontal scaling across heterogeneous grids of computers. To demonstrate the method we analyze approximately one month of public LIGO data from July 27 00:00 2017 UTC–Aug 25 22:00 2017 UTC and recover eight known confident gravitational-wave candidates. We also inject simulated binary black hole signals to demonstrate the sensitivity.Received 1 November 2021Accepted 4 October 2022DOI:https://doi.org/10.1103/PhysRevD.106.084033© 2022 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasClassical black holesGravitational wave detectionGravitational wave sourcesGravitation, Cosmology & Astrophysics