GCN Circular 10590
Subject
Konus-Wind observation of GRB 100413A
Event
Date
2010-04-14T13:39:18Z (16 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 100413A (Swift-BAT trigger #419404: Holland et al., GCN
10581; Stamatikos et al., GCN 10585) was detected by Konus-Wind in the
waiting mode.
The burst light curve shows a multipeaked structure with a total
duration of ~220 s.
As observed by Konus-Wind, the burst had a fluence of (2.66 +/-
0.23)x10^-5 erg/cm2 (in the 20 - 1200 keV energy range).
Modeling the K-W 3-channel time-integrated spectrum (from T0-3 s to
T0+212 s) by a power law with exponential cutoff model:
dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)
yields alpha = -1.01 � 0.06, Ep = 446 +/- 123 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/GRB100413A/
Assuming z ~ 3.9 (Campana, Evans, and Holland, GCN 10588) and a standard
cosmology model with H_0 = 71 km/s/Mpc, Omega_M = 0.27, Omega_Lambda =
0.73, the isotropic energy release is E_iso ~8x10^53 erg, and Ep_rest
~2200 keV.