{
  "subject": "GRB 140528A: Fermi GBM Detection",
  "eventId": "GRB 140528A",
  "bibcode": "2014GCN.16347....1S",
  "createdOn": 1401490299000,
  "circularId": 16347,
  "submitter": "Matthew Stanbro at UAH/Fermi  <mcs0001@uah.edu>",
  "email": "mcs0001@uah.edu",
  "body": "Matthew Stanbro (UAH) reports on behalf of the Fermi GBM Team:\n\n\"At 20:05:22.75 UT on 28 May 2014, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 140528A (trigger 423000325 / 140528837)\nwhich was triangulated by IPN (Golenetskii et al. 2014, GCN 16339).\nThe GBM on-ground location, using the Fermi GBM trigger data,\nis consistent with IPN triangulation.\n\nThe GBM light curve shows a complex structure, consisting of multiple peaks\nwith a total duration (T90) of about 13.6 s (50-300 keV).\nThe time-averaged spectrum from T0+1.024 s to T0+14.591 s is well fit\nby a power law function with an exponential high-energy cutoff.\nThe power law index is -0.56 +/- 0.03 and the cutoff energy,\nparameterized as Epeak, is 270 +/- 6 keV.\n\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.3 +/- 0.3)E-05 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0+11.20 s in the 10-1000 keV band is 13.6 +/- 0.4 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\""
}