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Hamburg, R.;
Fletcher, C.;
Burns, E.;
Goldstein, A.;
Bissaldi, E.;
Briggs, M. S.;
Cleveland, W. H.;
Giles, M. M.;
Hui, C. M.;
Kocevski, D.;
Lesage, S.;
Mailyan, B.;
Malacaria, C.;
Poolakkil, S.;
Preece, R.;
Roberts, O. J.;
Veres, P.;
von Kienlin, A.;
Wilson-Hodge, C. A.;
Wood, J.;
Abbott, R.;
Abbott, T. D.;
Abraham, S.;
Acernese, F.;
[...]
A Joint Fermi-GBM and LIGO/Virgo Analysis of Compact Binary Mergers from the First and Second Gravitational-wave Observing Runs
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- Medientyp: E-Artikel
- Titel: A Joint Fermi-GBM and LIGO/Virgo Analysis of Compact Binary Mergers from the First and Second Gravitational-wave Observing Runs
- Beteiligte: Hamburg, R.; Fletcher, C.; Burns, E.; Goldstein, A.; Bissaldi, E.; Briggs, M. S.; Cleveland, W. H.; Giles, M. M.; Hui, C. M.; Kocevski, D.; Lesage, S.; Mailyan, B.; Malacaria, C.; Poolakkil, S.; Preece, R.; Roberts, O. J.; Veres, P.; von Kienlin, A.; Wilson-Hodge, C. A.; Wood, J.; Abbott, R.; Abbott, T. D.; Abraham, S.; Acernese, F.; [...]
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Erschienen:
American Astronomical Society, 2020
- Erschienen in: The Astrophysical Journal
- Sprache: Nicht zu entscheiden
- DOI: 10.3847/1538-4357/ab7d3e
- ISSN: 0004-637X; 1538-4357
- Entstehung:
- Anmerkungen:
- Beschreibung: <jats:title>Abstract</jats:title> <jats:p>We present results from offline searches of Fermi Gamma-ray Burst Monitor (GBM) data for gamma-ray transients coincident with the compact binary coalescences observed by the gravitational-wave (GW) detectors Advanced LIGO and Advanced Virgo during their first and second observing runs. In particular, we perform follow-up for both confirmed events and low significance candidates reported in the LIGO/Virgo catalog GWTC-1. We search for temporal coincidences between these GW signals and GBM-triggered gamma-ray bursts (GRBs). We also use the GBM Untargeted and Targeted subthreshold searches to find coincident gamma-rays below the onboard triggering threshold. This work implements a refined statistical approach by incorporating GW astrophysical source probabilities and GBM visibilities of LIGO/Virgo sky localizations to search for cumulative signatures of coincident subthreshold gamma-rays. All search methods recover the short gamma-ray burst GRB 170817A occurring ∼1.7 s after the binary neutron-star merger GW170817. We also present results from a new search seeking GBM counterparts to LIGO single-interferometer triggers. This search finds a candidate joint event, but given the nature of the GBM signal and localization, as well as the high joint false alarm rate of 1.1 × 10<jats:sup>−6</jats:sup> Hz, we do not consider it an astrophysical association. We find no additional coincidences.</jats:p>
- Zugangsstatus: Freier Zugang