Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 12007

Subject
GRB 110422A: MASTER first 30 min OT light curve
Date
2011-05-05T06:42:02Z (13 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
O. Gres, K.Ivanov, V.A.Poleshchuk, S.Yazev, N.M.Budnev, O.Chuvalaev
Irkutsk State University

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

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

  MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in Tunka (Baykal lake) was pointed to the  GRB 110422A (Mangano 
et al., GCN Circ 11957)  53 sec after GRB time at 2011-04-22 15:42:48.507 UT (Gres et al., GCN Circ 
11960). We see  OT (Klunko et al. GCN 11958) on all  images in both 
polarizations in R-band.

The results of the our photometry are:

  mag     err    exp      t-t_trig	 mag	 err	exp     t-t_trig
  R/              s        mean (hours)    R\	         s    mean (hours)
14.89	0.29	10	0.0166          15.28	0.43	10	0.0163
15.03	0.17	20	0.0272  	15.3	0.25	20	0.0272
16.04	0.47	30	0.0400          15.73	0.31	30	0.0397
15.73	0.38	40	0.0551   	15.77	0.38	40	0.0548
16.35	0.41	50	0.0729  	16.05	0.27	50	0.0724
16.53	0.37	60	0.0938  	16.53	0.32	60	0.0934
16.36	0.45	80	0.1190  	16.35	0.41	80	0.1186
16.68	0.34	100	0.1502  	16.78	0.33	100	0.1498
17.74	0.79	120	0.1871  	17.17	0.34	120	0.1868
17.78	0.59	150	0.2319	        17.52	0.33	150	0.2315
17.26	0.3	180	0.2834  	17.56	0.32	180	0.2831
17.22	0.33	180	0.3403  	17.78	0.48	180	0.3399
17.2	0.32	180	0.3957  	18.32	0.87	180	0.3952
17.59	0.45	180	0.4513  	18.71	1.27	180	0.4510
18.08	0.91	180	0.5066  	19.25	2.64	180	0.5063

The LC's are available at:
http://observ.pereplet.ru/images/GRB110422/grb110422.png

  The message may be cited.
Looking for U.S. government information and services? Visit USA.gov