GCN Circular 11897
Subject
GRB 110407A: MASTER early optical observations
Date
2011-04-07T14:51:40Z (14 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina
Blagoveschensk Educational State University, Blagoveschensk
E. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina,
N.Shatskiy, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov,
D.Zimnukhov, M. Kornilov, A.Kuznetsov, D.Zimnukhov, M. Kornilov,
A.Sankovich
Sternberg Astronomical Institute, Moscow State University
A. Tlatov, A.V. Parhomenko, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory
V.Krushinski, I.Zalozhnich, T.Kopytova, A. Popov
Ural State University, Kourovka
K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok, O.Gres,
O.Chuvalaev, V.A.Poleshchuk
Irkutsk State University
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in Blagoveschensk was pointed to the GRB110407 25 sec s after
notice time and 107 sec after GRB time at 2011-04-07 14:08:28.65 UT. On
our first (20s exposure) set we haven`t found optical transient within
SWIFT-BAT error-box.
The 5-sigma unfiltred upper limit has been about 17.8 mag
MASTER II robotic telescope in Tunka also pointed on GRB110407 at same
time in two polarizations. Unfortunately during this moment there was a
strong clouds in the given direction and a upper limit very small.
The message may be cited.