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Galaxies 2018, 6(4), 130;

The Rate of Short-Duration Gamma-Ray Bursts in the Local Universe

1,†,* , 1,†,* , 1,†
Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK
Department of Physics, University of Warwick, Coventry CV4 7AL, UK
Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK
These authors contributed equally to this work.
Authors to whom correspondence should be addressed.
Received: 31 October 2018 / Revised: 23 November 2018 / Accepted: 27 November 2018 / Published: 30 November 2018
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Following the faint gamma-ray burst, GRB 170817A, coincident with a gravitational wave-detected binary neutron star merger at d 40 Mpc, we consider the constraints on a local population of faint short duration GRBs (defined here broadly as T 90 < 4 s). We review proposed low-redshift short-GRBs and consider statistical limits on a d 200 Mpc population using Swift/Burst Alert Telescope (BAT), Fermi/Gamma-ray Burst Monitor (GBM), and Compton Gamma-Ray Observatory (CGRO) Burst and Transient Source Experiment (BATSE) GRBs. Swift/BAT short-GRBs give an upper limit for the all-sky rate of < 4 y 1 at d < 200 Mpc, corresponding to < 5% of SGRBs. Cross-correlation of selected CGRO/BATSE and Fermi/GBM GRBs with d < 100 Mpc galaxy positions returns a weaker constraint of 12 y 1 . A separate search for correlations due to SGR giant flares in nearby ( d < 11 Mpc) galaxies finds an upper limit of < 3 y 1 . Our analysis suggests that GRB 170817A-like events are likely to be rare in existing SGRB catalogues. The best candidate for an analogue remains GRB 050906, where the Swift/BAT location was consistent with the galaxy IC 0327 at d 132 Mpc. If binary neutron star merger rates are at the high end of current estimates, then our results imply that at most a few percent will be accompanied by detectable gamma-ray flashes in the forthcoming LIGO/Virgo science runs. View Full-Text
Keywords: short gamma-ray bursts; physics; progenitors; host galaxies short gamma-ray bursts; physics; progenitors; host galaxies

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Mandhai, S.; Tanvir, N.; Lamb, G.; Levan, A.; Tsang, D. The Rate of Short-Duration Gamma-Ray Bursts in the Local Universe. Galaxies 2018, 6, 130.

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