GCN Circular 31744
Subject
GRB 220311A: A long GRB detected by INTEGRAL
Date
2022-03-11T17:24:07Z (3 years ago)
From
Sandro Mereghetti at IASF-Milano/INAF <sandro.mereghetti@inaf.it>
S.Mereghetti (INAF, IASF-Milano), D.Gotz (CEA, Saclay), C.Ferrigno,
E.Bozzo, V.Savchenko (ISDC, Versoix), L.Ducci (IAAT, Germany and ISDC,
Versoix) and J.Borkowski (CAMK, Torun) report:
a gamma ray burst lasting about 20 s has been detected by IBAS in the
IBIS/ISGRI data at 16:33:10 UT of March 11, 2022.
The refined coordinates (J2000) are:
R.A.= 157.9747 deg
DEC.= +66.0819 deg
with an uncertainty of 3 arcmin (90% c.l.).
The burst had a peak flux of 0.3 ph/cm2/s (20-200 keV, 1-s integration
time) and a fluence in the same energy range of about 2e-7 erg/cmq.
A plot of the light curve will be posted at
http://ibas.iasf-milano.inaf.it/IBAS_Results.html
--