{
  "bibcode": "2004GCN..2764....1G",
  "body": "D. Gotz, S. Mereghetti (IASF-Milano), F.I Mirabel (SAp-Saclay) report:\n\nThe activity from SGR 1806-20 reported in GCN Circ. 2763 consists of at\nleast two main bursts whose peak flux and detailed temporal structure\nare uncertain due to satellite telemetry saturation. Both are detected up\nto at least 200 keV in the IBIS/ISGRI instrument.\n\nThe first burst starts at 13:56:43 UT and lasts about 20 s.\nIts spectrum over the 15-200 keV range is well fit by an Optically Thin\nThermal Bremsstrahlung model with temperature kT = 45+/-3 keV.\nA preliminary analysis gives a lower limit on its fluence of about 1.e-5\nerg/cm2 (15-100 keV).\n\nThe second burst starts at 13:59:33 UT and lasts about 40 s.\nIts OTTB temperature is  kT = 57+/-3 keV and the preliminary\nlower limit on its fluence is  2.e-5 erg/cm2 (15-100 keV).\n\nThis message can be cited.",
  "circularId": 2764,
  "createdOn": 1096993037000,
  "email": "sandro@mi.iasf.cnr.it",
  "subject": "Bursts from SGR 1806-20: Preliminary INTEGRAL results",
  "submitter": "Sandro Mereghetti at IASF/CNR  <sandro@mi.iasf.cnr.it>"
}