GCN Circular 12676
Subject
Konus-Wind observation of GRB 111211A
Date
2011-12-13T12:48:30Z (12 years ago)
From
Valentin Pal'shin at Ioffe Inst <val@mail.ioffe.ru>
S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P.
Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind
team report:
The long GRB 111211A localized by SuperAGILE (Lazzarotto et al., GCN
12666) was detected by Konus-Wind in the waiting mode.
The burst light curve shows two pulses with a total duration of ~25 s.
As observed by Konus-Wind, the burst had a fluence of (9.2 +/-
0.8)x10^-6 erg/cm2 (in the 20 - 1200 keV energy range).
Fitting the K-W 3-channel time-integrated spectrum (from T0-18.141 s to
T0+8.355 s) by a simple power-law model yields a power law index of
2.77(-0.16, +0.18) (chi2=2.0/1 dof).
All the quoted errors are at the 90% confidence level.
The K-W light curve of this burst is available at
http://www.ioffe.rssi.ru/LEA/GRBs/GRB111211A/