Search for gravitational waves associated with gamma-ray bursts detected by Fermi and Swift during the LIGO-Virgo run O3a

LIGO Scientific and Virgo Collaboration, Alberto Vecchio, Conor Mow-Lowry, Riccardo Buscicchio, Patricia Schmidt, Kazuhiro Agatsuma, Leonid Prokhorov, Denis Martynov, Chris Moore, Amit Ubhi, Teng Zhang, David Stops, Haixing Miao, Geraint Pratten

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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.
Original languageEnglish
Article number86
Number of pages16
JournalThe Astrophysical Journal
Volume915
Issue number2
DOIs
Publication statusPublished - 9 Jul 2021

Keywords

  • Gravitational waves
  • Gravitational wave astronomy
  • LIGO
  • Gamma-ray bursts
  • Compact binary stars
  • Neutron stars
  • Black holes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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