Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 11439

Konus-Wind observation of GRB 101129A
2010-12-05T16:58:13Z (13 years ago)
Dmitry Frederiks at Ioffe Institute <>
S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin,
P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf
of the Konus-Wind team, report:

The short hard GRB 101129A
(localized by BAT and IPN: Cummings  et al. GCN 11436)
triggered Konus-Wind at T0=56370.759s UT (15:39:30.759)

The burst light curve consists of a single pulse
with a total duration of ~0.4 s.
The emission is seen up to 5 MeV.
The Konus-Wind light curve of this GRB is available at

As observed by Konus-Wind the burst
had a fluence of 3.5(+1.4/-1.1)x10-6 erg/cm2,
and a 16-ms peak flux measured from T0-0.096s
of 1.7(+0.7/-0.5)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+0.128 s) is best fit
in the 20 keV - 5 MeV range by a power law
with exponential cutoff model, for which
alpha = -0.4 (-0.4, +0.5),
and Ep = 1210(-400, +680) keV (chi2 = 8.1/12 dof).

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

[GCN OPS NOTE(06dec10): Per authors's request, the author list was added.]
Looking for U.S. government information and services? Visit