TITLE:   GCN CIRCULAR
NUMBER:  11523
SUBJECT: GRB 110106A: MASTER optical observations
DATE:    11/01/06 21:14:51 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>

E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina,
D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov,
D.Zimnukhov, M. Kornilov
Sternberg Astronomical Institute, Moscow State University

V.Krushinski, I.Zalozhnich, A. Popov
Ural State University, Kourovka

K.Ivanov, O.Chuvalaev, V.Poleschuk, E.Konstantinov, V.Lenok, O.Gres,
S.Yazev, N.M.Budnev,
Irkutsk State University

A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik
Kislovodsk Solar Station of the Pulkovo Observatory

V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina
Blagoveschensk Educational State University, Blagoveschensk

MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Kislovodsk was pointed to the  GRB110106A (Mangano et al., GCN 
Circ 1152) 17 sec s after notice time and 41 sec after GRB time at 
2011-01-06 15:25:57.96 UT in two polarizations+filter R. On our 
first (10s exposure) set we haven`t found optical transient  within SWIFT 
XRT error-box.
The 5-sigma upper limit has been about 16.0mag
We marginally see OT about 15.5 mag in XRT error box on second set at 
2011-01-06 15:26:19 (starting 69 s after trigger time with 10 sec 
exposition).

We see the like galaxy object near  (~15" distance) XRT error box ~19-20 
mag on later images. But, there is no object in NASA/IPAC EXTRAGALACTIC 
DATABASE. 
The same object is presented at DSS image.

The redaction is continueted.

The message may be cited.

mailto: lipunov@sai.msu.ru