GCN Circular 11542
Subject
Short GRB 110106A: MASTER OT observations
Event
Date
2011-01-07T15:54:51Z (15 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@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
V.Krushinski, I.Zalozhnich, A. Popov
Ural State University, Kourovka
K.Ivanov, O.Chuvalaev, V.Poleschuk, E.Konstantinov, V.Lenok, O.Gres,
S.Yazev, N.M.Budnev,
Irkutsk State University
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik
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
Kislovodsk was pointed to the GRB110106A (Mangano et al., GCN Circ 1152) 17
sec s after notice time and 41 sec after GRB time at 2011-01-06 15:25:57.96 UT
in two polarizations+filter R (Gorbovskoy et al., GCN Circ 11523).
We marginally see OT about 16.0+-0.5 mag in XRT error box on second set
at 2011-01-06 15:26:19 (starting 69 s after trigger time with 10 sec
exposition, Gorbovskoy et al., GCN Circ 11523).
The OT positon:
RA= 05 17 13.98
DEC= 64 10 23.5
the error +-4" and coincident with late OT TNG position (Malesani
et al., GCN Circ 11524).
GRB trigger time: 15:25:16
Time UT T-T_trigger Exp Filter Mag
15:25:57 41 10 Cr >16,1
15:26:19 63 10 R+P 16,0+-0.5
15:26:40 84 20 R+P >16,6
15:27:11 115 20 R+P >16,6
15:27:42 146 30 R+P >17,0
15:28:23 187 40 R+P >17,2
15:29:14 238 50 R+P >17,4
15:30:15 299 60 R+P >17,5
15:31:26 370 70 R+P >17,7
15:32:47 451 90 R+P >17,9
15:34:28 552 110 R+P >18,0
15:36:29 673 130 R+P >18,1
15:38:51 815 160 R+P >18,3
15:41:42 986 180 R+P >18,3
15:44:53 1177 180 R+P >18,4
The more detailed data are available at
http://observ.pereplet.ru/images/GRB110106A/grb.html
We see the galaxy near (~8" distance, in our prevous Circ
11523 we not include the binning CCD scale = 4"/pix) OT on later images
with long exposition. The redshift z=0.093 (Piranomonte et al., GCN Circ
1130) is typical for short bursts.
The origin of the GRB110106A is no connected with massive star core
collapse because long distance from center of the host galaxy
(independently of the host galaxy type!). The
origin of the GRB connected with the NS+NS or NS+BH merging
(Lipunov et al.,1995, "Evolution of the Double Neutron Star Merging Rate
and the Cosmological Origin of Gamma-Ray Burst Sources", Astrophysical Journal
v.454, p.593.; Lipunov, 1997, Relativistic
Binary Merging Rates, The Invited Review on Joint Discussion "High
Energy Transients" on XXIIIrd General Assembly of IAU, Kioto, 1997,
http://adsabs.harvard.edu/abs/1997astro.ph.11270L).
The message may be cited.
mailto: lipunov@sai.msu.ru