{
  "bibcode": "2014GCN.16708....1R",
  "body": "Oliver Roberts (UCD) reports on behalf of the Fermi GBM Team:\n\n\"At 05:30:09.12 UT on the 18th of August 2014, the Fermi Gamma-Ray\nBurst Monitor triggered and located GRB 140818A (trigger 430032612\n/ 140818229), which was also detected by MAXI/GSC (H. Negoro et al.\nGCN 16702 and GCN 16705). A possible afterglow has also been reported\nby Swift-XRT and UVOT (C. Swenson et al. GCN 16706)  The GBM\non-ground location is consistent with the MAXI/GSC and Swift positions.\nThe angle from the Fermi LAT boresight is 35 degrees.\n\nThe GBM light curve consists of two peaks, with the second peak\nat T~50s being brighter than the first. The duration (T90) of the\nburst is about 109 s (50-300 keV). The time-averaged spectrum from\nT0+25s to T0+135 s is adequately fit by a BAND function. The power\nlaw index alpha is -0.69 +/- 0.04 . The power law index beta is\n-2.39 +/- 0.10 . The cutoff energy, parameterised as Epeak, is\n181 +/- 8 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.95 +/- 0.06)E-05 erg/cm^2. The 1.024-sec peak photon flux was\nmeasured starting from T0+99.5 s in the 10-1000 keV band is\n8.6 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 16708,
  "createdOn": 1408385303000,
  "email": "oliver.roberts@ucd.ie",
  "subject": "GRB 140818A - Fermi GBM Detection",
  "submitter": "Oliver Roberts at UCD/Fermi  <oliver.roberts@ucd.ie>",
  "eventId": "GRB 140818A"
}