{
  "bibcode": "2010GCN.10427....1N",
  "body": "J. P. Norris (U. Denver), S. D. Barthelmy (GSFC), \nN. Gehrels (GSFC), and D. Grupe (PSU) report:\n \nTemporal analysis of BAT data for GRB 100213A suggests\nthat the burst is likely a member of the short, hard class:\n\nStructures in the burst's most intense pulse complex\nare as short as ~ 10-25 ms, typical of most short bursts.\n\nSpectral lag analysis of this most intense pulse complex\nindicate a lag between BAT channels 4 (100-350 keV) and\n2 (25-50 keV) of ~ 5 ms +- 15 ms.  For the whole event,\nthe lag between these same channels is ~ 15 ms +- 15 ms.\n\nA Bayesian Block analysis reveals no significant emission\nafter the T90 duration of 2.4 s (reported in GCN circ. 10424,\nBarthelmy et al.) for ~ 400 s following the BAT trigger time.\nThis is inconsistent only at the 2-sigma level with the finding\nin Circ 10424 that there was \"low level emission out to T+40 sec\",\nand we further note that this emission is only in the 15-25 keV band.",
  "circularId": 10427,
  "createdOn": 1266347136000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 100213A: Swift-BAT lag analysis indicates probably SHB",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 100213A"
}