[vsnet-grb-info 9763] GRB 100906A: MASTER preliminary polarization prompt light curve

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  11231
SUBJECT: GRB 100906A: MASTER preliminary polarization prompt light curve
DATE:    10/09/06 15:23:17 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc at 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

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



Two MASTER   robotic telescopes (MASTER-Net: http://observ.pereplet.ru)
located  near Baykal Lake (Tunka)  and Blagoveschensk was pointed to the
Swift GRB 100906A (Markwardt et al., GCN CIRCULAR
11227) 23  sec  after Notice time (38 s after trigger time) and 43 s after 
Notice time (58s after trigger time) (Ivanov et al., GCN CIRCULAR 11228).

We see brightening and decay of the prompt optical emission in both 
polarizations.

The preliminary light curve is available at
http://observ.pereplet.ru/images/GRB100906A/pre_lc.gif

This automatical phtometry calbrated by   USNOB1  stars.


The message may be cited.

mailto: lipunov at sai.msu.ru