GCN Circular 2988
Subject
GRB050126: MASTER optical limit for KECK OT
Event
Date
2005-01-26T21:32:19Z (20 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
V. Lipunov, A.Krylov, V.Kornilov, G.Borisov, D.Kuvshinov,
A.Belinski, M.Kuznetsov, S.Potanin, G.Antipov,
E.Gorbovskoy, N.Tyurina
Sternberg Astronomical Institute, Moscow
2.8 hours after SWIFT GRB050126 detection (GCN 2984) MASTER robotic
telescope (http://observ.pereplet.ru) had imaging the
corresponding area of the sky under the bad weather conditions on the
evening sky (see GCN Circ 2986).
We have about 50 unfiltered images of the error box (30s exposition,
6 square degrees field, 355 mm diameter ) started at 26 Jan 2005
14:49:18 UT (2.8 hours after GRB time).
There is no OT at the KECK OT (GCN Circ 2985)position on 3 sigma
level. There is no OT inside BAT 8' error box (GCN Circ 2987) on
3 sigma level.
In the Table 1 you can see some reduction of images.
Table 1
----------------------------------------------------------------------
Time (UT) OT Limit (close to R)
for KECK position Circ 2985 Note
----------------------------------------------------------------------
14:54:47 >15.0
14:55:37 >15.0
14:56:26 >15.3
15:28:56 >15.6
15 16 06 - 15 28 00 >16.5 Sum of the 8 images
15 14 07 - 15 53 45 ~17.0 Sum of the 42 images
-----------------------------------------------------------------------
JPG-images are available at
http://observ.pereplet.ru/images/050126/ .
The sum 15 16 06 - 15 28 65 (UT) are available at
http://observ.pereplet.ru/images/050126/sum_8.jpg .
This message may be cited.
This work is supported by Moscow Union "OPTICA" and RFFI 04-02-16411.
Mailto: lipunov@sai.msu.ru