GCN Circular 14912
Subject
Fermi/GBM observation of the Soft Gamma Repeater SGR J1550-5418
Date
2013-06-17T16:32:52Z (11 years ago)
From
David Gruber at MPE <dgruber@mpe.mpg.de>
David Gruber (MPE) reports on behalf of the Fermi GBM Team:
"At 09:52:30.48 UT on 17 June 2013, the Fermi Gamma-Ray Burst Monitor
triggered on a burst from SGR J1550-5418 / AXP 1E1547.0-5408
(trigger 393155553 / 130617411) which was also detected by the Swift satellite
(Holland et al. 2013, GCN 14911).
The GBM on-ground location is consistent with the Swift position.
The GBM light curve consists of a single pulse
with a duration (T90) of about 0.2 s (8-200 keV).
The time-averaged spectrum from T0-0.24 s to T0-0.032 s is
best fit by a blackbody function with a kT = 12.9 +/- 0.6 keV.
The event fluence (10-1000 keV) in this time interval is
(1.3 +/- 0.1)E-07 erg/cm^2. The 16 ms peak photon flux
measured at T0-0.208 s in the 10-1000 keV band
is 19.8 +/- 2.6 ph/s/cm^2.
The spectral analysis results presented above are preliminary."