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Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
Abstract:
Advanced LIGO and Virgo have reported ninety confident gravitational-wave
(GW) observations from compact-binary coalescences from their three observation
runs. In addition, numerous subthreshold gravitational-wave candidates have
been identified. Binary neutron star (BNS) mergers can produce gravitational
waves and short-gamma ray bursts, as confirmed by GW170817/GRB 170817A. There
may be electromagnetic counterparts recorded in archival observations
associated with subthreshold gravitational-wave candidates. The CHIME/FRB
collaboration has reported the first large sample of fast radio bursts (FRBs),
millisecond radio transients detected up to cosmological distances; a fraction
of these may be associated with BNS mergers. This work searches for coincident
gravitational waves and FRBs from BNS mergers using candidates from the
4th-Open Gravitational-wave Catalog (4-OGC) and the first CHIME/FRB catalog. We
use a ranking statistic for GW/FRB association which combines the
gravitational-wave detection statistic with the odds of temporal and spatial
association. We analyze gravitational-wave candidates and non-repeating FRBs
from 2019 April 1 to 2019 July 1, when both the Advanced LIGO/Virgo
gravitational-wave detectors and the CHIME radio telescope were observing. The
most significant coincident candidate has a false alarm rate of 0.29 per
observation time, which is consistent with a null observation. The null results
imply at most $\mathcal{O}(0.01)\%$ - $\mathcal{O}(1)\%$ of FRBs are produced
from the BNS mergers.
