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A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run

Fletcher, C.
•
Wood, J.
•
Hamburg, R.
altro
null, null
2024
  • journal article

Periodico
THE ASTROPHYSICAL JOURNAL
Abstract
We present Fermi Gamma-ray Burst Monitor (Fermi-GBM) and Swift Burst Alert Telescope (Swift-BAT) searches for gamma-ray/X-ray counterparts to gravitational-wave (GW) candidate events identified during the third observing run of the Advanced LIGO and Advanced Virgo detectors. Using Fermi-GBM onboard triggers and subthreshold gamma-ray burst (GRB) candidates found in the Fermi-GBM ground analyses, the Targeted Search and the Untargeted Search, we investigate whether there are any coincident GRBs associated with the GWs. We also search the Swift-BAT rate data around the GW times to determine whether a GRB counterpart is present. No counterparts are found. Using both the Fermi-GBM Targeted Search and the Swift-BAT search, we calculate flux upper limits and present joint upper limits on the gamma-ray luminosity of each GW. Given these limits, we constrain theoretical models for the emission of gamma rays from binary black hole mergers.
DOI
10.3847/1538-4357/ad1eed
WOS
WOS:001253127600001
Archivio
https://hdl.handle.net/11368/3075059
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85189472922
https://iopscience.iop.org/article/10.3847/1538-4357/ad1eed
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
FVG url
https://arts.units.it/bitstream/11368/3075059/1/Fletcher_2024_ApJ_964_149-2.pdf
Soggetti
  • Gravitational wave

  • Gamma ray burst

  • X-ray astronomy

  • mulltimessenger astro...

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