{
  "circularId": 35037,
  "body": "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:\n\na short hard burst lasting about 150 ms has been detected by IBAS in the  IBIS/ISGRI data at 15:36:22  UT of November 15, 2023.\n\nThe refined coordinates (J2000) are:\nR.A.= 149.000901 [degrees] \nDEC.=  69.680130  [degrees]\nwith an uncertainty of 2  arcmin (90% c.l.).\n\nWe note that this position is consistent with the galaxy M82, so this event, which also triggered Fermi/GBM,  may be due to a magnetar giant flare or to a nearby merger. So we encourage follow-up at other wavelengths.\n\nA plot of the light curve will  be posted at \nhttp://ibas.iasf-milano.inaf.it/IBAS_Results.html",
  "createdOn": 1700065584102,
  "submittedHow": "web",
  "bibcode": "2023GCN.35037....1M",
  "eventId": "GRB 231115A",
  "submitter": "Diego Gotz at CEA <diego.gotz@cea.fr>",
  "subject": "GRB 231115A: a short hard GRB detected by IBAS, poistionally coincident with M82"
}