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GCN Circular 20256

IceCube-161210: Konus-Wind upper limits
2016-12-14T15:23:56Z (7 years ago)
Dmitry Svinkin at Ioffe Institute <>
D. Svinkin, S. Golenetskii, R.Aptekar, D. Frederiks, P. Oleynik,
M. Ulanov, A. Tsvetkova, A.Lysenko, A. Kozlova, and T. Cline,
on behalf of the Konus-Wind team, report:

Using Konus-Wind (KW) data, we have performed a search for
a gamma-ray transient around the time of the cosmic neutrino
candidate IceCube-161210 (Blaufuss, GCN 20247;

No triggered KW event happened from ~6 days before to more than 4 days 
after the IceCube event time (2016-12-10 20:07:16 UT, hereafter T0). 
Using Konus-Wind waiting mode data in the interval T0 +/- 1000 s, we 
estimate an upper limit (90% conf.) on the 10 keV ��� 10 MeV fluence to 
~1.2x10^-6 erg/cm^2 for a burst lasting less than 2.944 s and having a 
typical KW short GRB spectrum (an exponentially cut off power law with 
alpha=-0.5 and Ep=500 keV, Svinkin et al. 2016). For a typical long GRB 
spectrum (the Band function with alpha=-1, beta=-2.5, and Ep=250 keV), 
the corresponding limiting peak flux is ~3.2x10^-7 erg/cm^2/s (10 keV - 
10 MeV, 2.944 s scale).

All the quoted values are preliminary.
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