{
  "bibcode": "2016GCN.19724....1H",
  "body": "R. Hamburg (UAH) and E. Burns (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 18:23:57.00 UT on 20 July 2016, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 160720A (trigger 490731840 / 160720767).\nThe on-ground calculated location, using the Fermi GBM trigger data,\nis RA = 43, Dec = +76, with a statistical uncertainty of 1.00 degrees;\nthere is additionally a systematic error\nwhich we have characterized as a core-plus-tail model, with 90% of GRBs\nhaving a\n3.7 deg error and a small tail suffering a larger than 10 deg systematic\nerror.\n[Connaughton et al. 2015, ApJS, 216, 32].\nThe angle from the Fermi LAT boresight is 131 degrees.\n\nThe GBM light curve consists of several overlapping peaks with a duration\n(T90)\nof about 79 s (50-300 keV). The time-averaged spectrum from T0-1.02 to\nT0+154 s is best fit by a power law function with an exponential\nhigh-energy cutoff. The power law index is -1.12 +/- 0.01 and\nthe cutoff energy, parameterized as Epeak, is 191 +/- 3 keV.\n\nThe event fluence (10-1000 keV) in this time interval is (151 +/- 1)E-06\nerg/cm^2. The 1-sec peak photon flux measured starting from T0+88 s in the\n10-1000 keV band is 58 +/- 1 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 19724,
  "createdOn": 1469066023000,
  "email": "rkh0007@uah.edu",
  "subject": "GRB 160720A: Fermi GBM detection",
  "submitter": "Rachel Hamburg at UAH  <rkh0007@uah.edu>",
  "eventId": "GRB 160720A"
}