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We examine how fast radio burst (FRB)-like signals predicted to be generatedduring the merger of a binary neutron star (BNS) may be detected inlow-frequency radio observations triggered by the aLIGO/Virgo gravitationalwave detectors. The rapidity, directional accuracy, and sensitivity offollow-up observations with the Murchison Widefield Array (MWA) are considered.We show that with current methodology, the rapidity criteria fails fortriggered MWA observations above 136 MHz for BNS mergers within the aLIGO/Virgohorizon, for which little dispersive delay is expected. A calculation of theexpected reduction in response time by triggering on `negative latency' alertsfrom aLIGO/Virgo observations of gravitational waves generated by the BNSinspiral is presented. This allows for observations up to 300 MHz where theradio signal is expected to be stronger. To compensate for the poor positionalaccuracy expected from these alerts, we propose a new MWA observational modethat is capable of viewing one quarter of the sky. We show the sensitivity ofthis mode is sufficient to detect an FRB-like burst from an event similar toGW170817 if it occurred during the ongoing aLIGO/Virgo third science run (O3).

Using negative-latency gravitational wave alerts to detect prompt radio bursts from binary neutron star mergers with the Murchison Widefield Array