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

C. Fletcher, J. Wood, R Hamburg, P Veres, C. M. Hui, Elisabetta Bissaldi, M S Briggs, E. Burns, W.H. Cleveland, M.M. Giles, A. Goldstein, B. A. Hristov, Vaishali Adya, Paul Altin, Sheon Chua, Johannes Eichholz, Perry Forsyth, Dan Gould, Benjamin Grace, Jonas JunkerNathan Holland, Disha Kapasi, Nutsinee Kijbunchoo, David McClelland, Terry McRae, Susan Scott, Bram Slagmolen, Ling Sun, Daniel Toyra, Robert Ward, Karl Wette, Min Jet Yap, Jue Zhang

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    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.
    Original languageEnglish
    JournalThe Astrophysical Journal
    Volume964
    Issue number149
    DOIs
    Publication statusPublished - 2024

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