GRB 050316
GCN Circular 3106
Subject
GRB050316: MASTER optical observations
Date
2005-03-16T22:57:51Z (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
After HETE alert 3693 MASTER robotic telescope (http://observ.pereplet.ru)
had imaging the corresponding area of the sky under the good weather
conditions. We have about 50 unfiltered images of the error box (30s
exposition, 6 square degrees field) started at 16 Mar 2005 21:13:01
UT (103 s after GRB time).
The limiting magnitude on the images was about 18.0.
We have about 50 low resolition spectra (50A) 40'x30' area.
The JPG-images (with possible candidate and asteroids) are available at
http://observ.pereplet.ru/images/GRB050316/2.jpg
This is preliminary result.
This message may be cited.
This work is supported by Moscow Union "Optic" and partly supported by
RFFI 04-02-16411.
Mailto: lipunov@sai.msu.ru
GCN Circular 3108
Subject
GRB050316: MASTER before, simultanious and follow up optical
Date
2005-03-17T12:17:53Z (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
We obtained a lot of images of the central part of the large HETE
Field-of-View during standart MASTER (http://observ.pereplet.ru)
sky survey last night (about 100 square degrees before and after
GRB time (HETE alert 3693)).
You can see the history of observations at
http://observ.pereplet.ru/images/GRB050316/HETE050316.gif .
We have 6 images per each 6 square degrees up to 19.5 magnitude on summ
and low resolution spectra (50 A) on each central part (40'x30') of the
image.
One image was received through GRB-time: 21:10:29.385 - 21:11:14.385 UT.
There is no OT up to 16.5 with its life-time less than 45 s at this image.
After HETE alert 3693 MASTER robotic telescope (http://observ.pereplet.ru)
had imaging the corresponding (HETE alert 3693, 05/03/16, 21:11:17.67
UT, S/C_Update, WXM ) error box (GCN Circ 3106). We have about 50
unfiltered images of the error box (30s
exposition, 6 square degrees field) started at 16 Mar 2005 21:13:01
UT (103 s after GRB time).
The limiting magnitude on the images was about 18.0.
The JPG-images of the error box are available at
http://observ.pereplet.ru/images/GRB050316/2.jpg .
No new optical sources with respect to USNO B.
The triangulation with other Gamma-detectors would be very
helpfull because HETE error box rejected.
This message may be cited.
This work is supported by Moscow Union "Optic" and partly supported by
RFFI 04-02-16411.
Mailto: lipunov@sai.msu.ru