{
  "bibcode": "2013GCN.14940....1B",
  "body": "D. Byrne (UCD), A. von Kienlin (MPE) and W. Paciesas (UAH) report on the\nbehalf of the Fermi GBM Team:\n\n\"At 11:42:47.05 UT on 23 June 2013, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 130623A (trigger 393680570 / 130623488),\nwhich was also detected by the Swift/BAT (J. R. Cummings 2013, GCN 14921).\nThe GBM on-ground location is consistent with the Swift position.\nThe angle from the Fermi LAT boresight is 46 degrees.\n\nThe GBM light curve consists of four peaks within 30s of the trigger\ntime with a duration (T90) of about 21 s (50-300 keV).\n\nThe time-averaged spectrum from T0-6.144s to T0+24.576s is well fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -1.03 +/- 0.53 and the cutoff energy,\nparameterized as Epeak, is 26.11 +/- 4.67 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.63 +/- 0.20)E-06 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0+13.568 s in the 10-1000 keV band is 5.07 +/- 0.25 ph/s/cm^2.\n\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"\n\n\n\n-- \nDavid Byrne BSc.\nSchool of Physics,\nScience Center North,\nUniversity College Dublin,\nBelfield, Dublin 4,\nIreland.",
  "circularId": 14940,
  "createdOn": 1372352827000,
  "email": "david.byrne.2@ucdconnect.ie",
  "subject": "GRB 130623A: Fermi GBM detection",
  "submitter": "David Byrne at UCD  <david.byrne.2@ucdconnect.ie>",
  "eventId": "GRB 130623A"
}