TITLE: GCN CIRCULAR NUMBER: 16626 SUBJECT: GRB 140723A: Fermi GBM detection DATE: 14/07/23 18:47:59 GMT FROM: Eric Burns at U of Alabama E. Burns (UAH) reports on behalf of the Fermi GBM Team: "At 01:36:30.73 UT on 23 July 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 140723A (trigger 427772193 / 140723067). It was also detected by Fermi LAT (Bissaldi et al. 2014, GCN 16623). The GBM on-ground location is consistent with the LAT position. The GBM light curve consists of a single pulse with a duration (T90) of about 56 s (50-300 keV). The time-averaged spectrum from T0+0.002 s to T0+56.801 s is well fit by a power law function with an exponential high-energy cutoff. The power law index is -1.1 +/- 0.1 and the cutoff energy, parameterized as Epeak, is 968 +/- 231 keV. The event fluence (10-1000 keV) in this time interval is (1.46 +/- 0.04)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+0.000 s in the 10-1000 keV band is 4.8 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."