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GCN Circular 7751

Subject
Konus-Wind observation of GRB 080514B
Date
2008-05-19T13:14:50Z (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,
and T. Cline on behalf of the Konus-Wind team report:

The bright GRB 080514B localized by SuperAGILE/IPN (Rapisarda et al., 
GCN 7715) triggered Konus-Wind at T0=35758.672 s UT (09:55:58.672).

The burst light curve shows a multipeaked structure with a duration of
~7 s.

As observed by Konus-Wind the burst
had a fluence of 3.23(-0.26, +0.27)x10^-5 erg/cm2,
and a 16-ms peak flux measured from T0+3.328 s
of (2.07 +/- 0.43)x10^-5 erg/cm2/s
(both in the 20 keV - 5 MeV energy range).

The time-integrated spectrum of the burst
(from T0 to T0+12.032 s) is well fitted (in the 20 keV-5 MeV range)
by GRBM (Band) model for which:
the low-energy photon index is alpha = -0.599(-0.134, +0.161),
the high energy photon index beta = -2.48(-0.25, +0.18),
the peak energy Ep = 224 (-22, +23) keV (chi2 = 72.3/76 dof).

All the quoted errors are at the 90% confidence level.

The Konus-Wind light curve of this GRB is available
at http://www.ioffe.rssi.ru/LEA/GRBs/GRB080514_T35758/
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