GCN Circular 19821
Subject
GRB 160816A: MASTER OT early detection on coaded images
Date
2016-08-18T16:25:19Z (8 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
N.Tyurina, E. Gorbovskoy, V. Lipunov, V.Kornilov,
P.Balanutsa, A.Kuznetsov, D.Kuvshinov
Lomonosov Moscow State University, Sternberg Astronomical Institute
R. Rebolo, M. Serra, N. Lodieu, G. Israelian
The Instituto de Astrofisica de Canarias
K.Ivanov, O.Gres, N.M.Budnev, S.Yazev,
Irkutsk State University
D.Buckley, S. Potter, A.Kniazev, M.Kotze
South African Astronomical Observatory
A. Tlatov, V.Senik, D. Dormidontov, A.Parkhomenko
Kislovodsk Solar Station of the Pulkovo Observatory
V.Yurkov, Yu.Sergienko, A.Gabovich
Blagoveschensk Educational State University, Blagoveschensk
Hugo Levato, Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
R.Podesta, C.Mallamaci, C.Lopez, F. Podesta
Observatorio Astronomico Felix Aguilar (OAFA)
MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in IAC was pointed to the GRB160816.73 24 sec after notice time
and 18726 sec after trigger time at 2016-08-16 22:43:04 UT. (We corrected
start exposition time which published in previouse MASTER circular
(Lipunov et al., GCN 19805). We reducted coadded images and found OT.
We see OT on coadded images inside SWIFT XRT (Kennea et al., GCN19806) at
LCOGT position (Guidorzi et al., GCN 19808, Kuin et al., GCN 19815) on two
tubes with unfiltered magnitude calibrated by USNO B1 stars ( m =
0.2B+0.8R ):
m_OT=20.5 (+0.5 -0.2) at mean exposition time 2016-08-16 23:05:53,
20095 sec (5.58 hours) after GBM trigger time. T_start =18762sec,
T_end=21464
after
trigger. The total exposition = 1800 sec.
The images is available at
http://observ.pereplet.ru/images/GRB160816AMASTER.jpg
The message may be cited.
