{
  "bibcode": "2016GCN.19121....1N",
  "body": "J. P. Norris (BSU), S. D. Barthelmy (GSFC), A. Y. Lien (GSFC/UMBC),\nN. Gehrels (GSFC), D. Malesani (DARK/NBI), T. Sakamoto (AGU),\nand E. Troja (GSFC/UMCP) report:\n\nWe report on the spectral lag analysis of the initial pulse and extended\nemission measurements of GRB 160228A (Malesani et al., GCN Circ. 19107).\n\nUsing a 32-ms binned light curve (which is the shortest time bin\npossible for the lag analysis in this case), the lag of the initial pulse\n(~T0 to ~T0+2 s) for the 100-350 keV to 25-50 keV bands is estimated\nas 75 (+100/-60) ms (with 1-sigma error).\n\nDespite the large error bars, the lag is inconsistent with zero, and thus\nthe lag of the initial pulse is much more consistent with those from a long\nGRBs rather than short bursts (e.g., Norris et al. 2006).\n\nMoreover, further analysis of the initial pulse intensity shows that it is\nonly a factor of several more intense than the extended emission in\nboth the 1-s binned and 32-ms binned light curves, which is much less\nprominent than the usual short GRBs with extended emission (e.g.,\nNorris et al. 2006).",
  "circularId": 19121,
  "createdOn": 1456777295000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB160228A: Further analyses on spectral lag and extended emission",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 160228A"
}