{
  "bibcode": "2014GCN.15814....1N",
  "body": "J. Norris (BSU), S. D. Barthelmy (GSFC), A. Lien (GSFC), C. Markwardt (GSFC),\nT. Sakamoto (AGU), N. Gehrels (GSFC) report:\n\nWe report the spectral lag analysis for GRB 140209A (GCN Circ. 15808 & 15812)\nbased on the BAT data.  Using 4-ms binned light curve, the spectral lag\nfor the 25-50 keV to 100-350 keV bands is 28 (+10/-7) ms, and +34 (+8/-5) ms\nfor the 15-25 keV to 50-100 keV bands.  These lag values are consistant with a Long GRB.\nFurther, the extended emission is both shorter than the typical extended eimssion of a\nShort GRB, and its shape is exponential in decay instead of more flat-like.\nAnd lastly, there is pecursor emission.  The lag for the precursor\nin the 15-25 keV to 50-100 keV bands is 150 (+36/-30) ms.",
  "circularId": 15814,
  "createdOn": 1392040406000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 140209A: Swift-BAT Spectral lag analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 140209A"
}