GCN Circular 27383
Subject
GRB 200313A: Fermi GBM detection
Date
2020-03-13T19:20:45Z (5 years ago)
From
Stephen Lesage at Fermi-GBM Team <sjl0014@uah.edu>
S. Lesage (UAH) and C. Meegan (UAH)
report on behalf of the Fermi GBM Team:
"At 01:41:36.62 UT on 13 March 2020, the Fermi Gamma-Ray Burst Monitor (GBM)
triggered and located GRB 200313A (trigger 605756501 / 200313071).
The location for this GRB was reported in the Fermi GBM Final Real-time
Localization GCN (GCN 27374).
The GBM light curve shows a single broad peak
with a duration (T90) of about 13.6 s (50-300 keV).
The time-averaged spectrum from T0 s to T0+22.5 s is
best fit by a Band function with Epeak = 279 +/- 10 keV,
alpha = -0.64 +/- 0.02, and beta = -1.84 +/- 0.02.
The event fluence (10-1000 keV) in this time interval is
(7.37 +/- 0.05)E-05 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+2.4 s in the 10-1000 keV band
is 57.0 +/- 0.7 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog:
https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html
For Fermi GBM data and info, please visit the official Fermi GBM Support
Page:
https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"