TITLE:   GCN CIRCULAR
NUMBER:  11235
SUBJECT: GRB 100906A: MASTER preliminary prompt+afterglow lc
DATE:    10/09/06 18:13:03 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>

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

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

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

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


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

Observations on  MASTER robotic telescope at Tunka (MASTER-Net: 
http://observ.pereplet.ru, Lipunov et al., 2010,  Advances in Astronomy, 
vol. 2010, pp. 1-7) are continued (Ivanov et al., GCN CIRCULAR 11228, 
Gorbovskoy et al., GCN CIRCULAR 11231).
We have very smoth light curve up to 4 hours after trigger time. 
The power low index afterglow decay (F~T_alpha) apha is equal  -0.83+-0.02 
. 
The preliminary 20 min automatical light curve is available at
http://observ.pereplet.ru/images/GRB100906A/lc_GRB100906A_30min.png
(unfiltered).

This automatical pohtometry calibrated by   USNOB1  stars.


The message may be cited.

mailto: lipunov@sai.msu.ru