{
  "submittedHow": "web",
  "bibcode": "2024GCN.36479....1B",
  "format": "text/plain",
  "body": "E. Bissaldi (Politecnico and INFN Bari) and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\n\"At 07:22:02 UT on 13 May 2024, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 240513A (trigger 737277727 / 240513307),\nwhich was also detected by the Fermi/LAT (Cutini et al. 2024, GCN 36462)\nand AstroSat CZTI (Joshi et al. 2024, GCN 36455).\nThe GBM on-ground location is consistent with the LAT position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 34 degrees.\n\nThe GBM light curve consists of two emission episodes\nwith a duration (T90) of about 7 s (50-300 keV).\nThe time-averaged spectrum from T0-0.3 s to T0+6.5 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff. The power law index is -0.87 +/- 0.06 and\nthe cutoff energy, parameterized as Epeak, is 1700 +/- 400 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.93 +/- 0.17)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+3.8 s in the 10-1000 keV band\nis 4.1 +/- 0.2 ph/s/cm^2.\n\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"",
  "eventId": "GRB 240513A",
  "submitter": "Elisabetta Bissaldi at Politecnico and INFN Bari <elisabetta.bissaldi@ba.infn.it>",
  "subject": "GRB 240513A: Fermi GBM observation",
  "circularId": 36479,
  "createdOn": 1715701759024
}