{
  "bibcode": "2016GCN.19550....1S",
  "body": "M. Stamatikos (OSU), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),\nA. D'Ai (INAF-IASFPA), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. Malesani (DARK/NBI),\nD. M. Palmer (LANL), T. Sakamoto (AGU), T. N. Ukwatta (LANL)\n(i.e. the Swift-BAT team):\n\nUsing the data set from T-239 to T+963 sec from the recent telemetry downlink,\nwe report further analysis of the recent outburst from SGR 1617-5103,\na.k.a. 1E 161348-5055 and 2E 1613.5-5053 (trigger #700791; D'Ai et al.,\nGCN Circ. 19547, formerly identified as a GRB). The BAT ground-calculated\nposition is\nRA, Dec = 244.357, -51.060 deg which is\n  RA(J2000)  =  16h 17m 25.7s\n  Dec(J2000) = -51d 03' 37.0\"\nwith an uncertainty of 1.8 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 71%.\n\nThe mask-weighted light curve shows a very short spike that starts and peaks\nat ~T0, and ends at ~T+0.008 s. T90 (15-350 keV) is 0.008 +- 0.004 sec (estimated\nerror including systematics).\n\nWe note that the short single spike seen by BAT is typical of SGR large flares.\nThis could be an SGR flare from the central neutron star of SNR RCW103.\n\nThe time-averaged spectrum from T+0.0 to T+0.008 sec is best fit by a simple\npower-law model (chi2 = 37.71; 57 degrees of freedom).  The power law index of the\ntime-averaged spectrum is 1.77 +- 0.26.  The fluence in the 15-150 keV band\nis 1.9 +- 0.4 x 10^-8 erg/cm2. If using a black-body model, which is more suitable\nfor an SGR, the spectral fit finds that kT = 9.9 +- 1.9 keV (chi2 = 48.25; 57 degrees\nof freedom). All the quoted errors are at the 90% confidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/700791/BA/",
  "circularId": 19550,
  "createdOn": 1466634922000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "Swift-BAT refined analysis of the recent outburst from SGR 1617-5103 (a.k.a. 1E 161348-5055 and 2E 1613.5-5053)",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>"
}