Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Ferm and Swift during the LIGO-Virgo Run O3a

Abbott, R. and Somala, S N and et al, . (2021) Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Ferm and Swift during the LIGO-Virgo Run O3a. Astrophysical Journal, 915 (2). ISSN 0004637X

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Abstract

We search for gravitational-wave transients associated with gamma-ray bursts (GRBs) detected by the Fermi and Swift satellites during the first part of the third observing run of Advanced LIGO and Advanced Virgo (2019 April 1 15:00 UTC-2019 October 1 15:00 UTC). A total of 105 GRBs were analyzed using a search for generic gravitational-wave transients; 32 GRBs were analyzed with a search that specifically targets neutron star binary mergers as short GRB progenitors. We find no significant evidence for gravitational-wave signals associated with the GRBs that we followed up, nor for a population of unidentified subthreshold signals. We consider several source types and signal morphologies, and report for these lower bounds on the distance to each GRB. © 2021. The American Astronomical Society. All rights reserved..

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