GCN Circular 17237
Subject
GRB 141225A: MASTER-SAAO first OT detection
Date
2014-12-26T10:41:39Z (9 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
D.Buckley, S. Potter, A. Kniazev, M. Kotze
South African Astronomical Observatory
E. Gorbovskoy,V. Lipunov, N.Tyurina P.Balanutsa, D.Denisenko,
M.Pruzhinskaya,A.Kuznetsov, V.Kornilov, D.Kuvshinov,
Lomonosov Moscow State University,
Sternberg Astronomical Institute
O.Gres, K.Ivanov, S.Yazev, N.M.Budnev, V.A.Poleshchuk
Irkutsk State University
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov
Blagoveschensk Educational State University
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik
Kislovodsk Solar Station of the Pulkovo Observatory
V.Krushinsky, I.Zalozhnih, A. Popov
Ural Federal University, Kourovka
H. Levato and C. Saffe
Instituto de Ciencias Astronomicas de la Tierra y del Espacio (ICATE),
San Juan, Argentina
C. Mallamacci, C. Lopez and F. Podest
Observatorio Astronomico Felix Aguilar (OAFA), San Juan National University,
Argentina
MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru)
installed several days ago in South African Astronomical
Observatory (Sutherland) was automatically pointed
to the Swift and Fermi GRB 141225A (Avanzo et. al. GCN 17229).
Firstly MASTER-SAAO pointed by FERMI coordinates and made first exposure
28 sec. after FERMI trigger at 2014-12-25 23:02:28 UT.
Then MASTER-SAAO pointed to the Swift coordinates 20 sec after Swift
notice time and 113 sec after trigger time at 2014-12-25 23:03:00 UT in
two polarizations.
MASTER-SAAO discovered OT source (Gorosabel et. al. 17230, Malesani et. al
17232, Kuin et. al 17233, Xu et. al 17236):
Ra: 09:15:06.94
Dec: +33:47:30.87
Mag: 17.5
The source is visible on the subsequent frames. The data reduction is
continued.
Our band is well described by a parity 0.8R+0.2B (USNO B1).
This message may be cited.