GCN Circular 13351
Subject
Konus-Wind observation of GRB 120528B
Event
Date
2012-05-31T10:25:04Z (14 years ago)
From
Dmitry Frederiks at Ioffe Institute <fred@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 120528B (MAXI/GSC detection and localization:
M. Morii et al., GCN 13346) was detected by Konus-Wind
in the waiting mode starting at T0(KW)= 65508 s UT (18:11:48),
~20s before the T0(MAXI).
The burst light curve shows a single pulse with a total duration of ~30s.
As observed by Konus-Wind, the burst had a fluence
of (2.9 � 0.8)x10-6 erg/cm2 (in the 20 - 1200 keV energy range).
Modelling the K-W 3-channel time-integrated spectrum
(from T0(KW) to T0(KW)+26 s)
by a power law with exponential cutoff model:
dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)
yields alpha = -0.41 � 1.22, and Ep = 201 � 112 keV
All the quoted errors are estimated at the 1 sigma confidence level.
The K-W light curve of this burst is available at
http://www.ioffe.rssi.ru/LEA/GRBs/GRB120528B/