GRB 191105.01

R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
The Instituto de Astrofisica de Canarias

V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa,
A.Kuznetsov, D. Vlasenko, F. Balakin
Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University

K. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk
Irkutsk State University

A. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory

V. Yurkov, A. Gabovich, Yu. Sergienko
Blagoveschensk Educational State University, Blagoveschensk


D. Buckley, S. Potter, A. Kniazev, M. Kotze
South African Astronomical Observatory

R. Podesta, Carlos Lopez and F. Podesta
Observatorio Astronomico Felix Aguilar (OAFA)

Hugo Levato
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)

MASTER-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) was pointed to the  GRB191105.01 38 sec after notice time and 57 sec after trigger time at 2019-11-05 00:09:55 UT. On our 3-th (30s exposure)  set , obtained 134 sec after tigger time at 2019-11-05 00:11:13 UT, we  found 1 optical transient within Swift error-box (ra=293.742 dec=21.9147 r=0.05) brighter than 14.22.


 T-Tmid      Date      Time       Expt.        Ra                Dec           Mag
---------|---------------------|-------|-----------------|-----------------|-------
     149   2019-11-05 00:11:13      30   (19h 34m 49.505s , +21d 56m 28.09s)    13.98


The 5-sigma upper limit has been about 14.22mag
The message may be cited.

V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, 
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov 
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

H.Levato 
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev, O.Ershova 
(Irkutsk State University, API),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

V. Yurkov, A. Gabovich, Yu. Sergienko 
(Blagoveschensk Educational State University)




MASTER-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) was pointed to the Swift GRB191105.01 (trigger No 933276,19h 34m 58.320s , +21d 54m 54.00s, R=0.05) errorbox  34 sec after notice time and 57 sec after trigger time at 2019-11-05 00:09:55 UT, with upper limit up to  15.6 mag. The observations began at zenith distance = 86 deg. The sun  altitude  is -74.9 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1187352

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      62 |          MASTER-IAC |  P| |    10 | 13.1 |        
     105 |          MASTER-IAC |  P| |    20 | 14.5 |        
     150 |          MASTER-IAC |  P| |    30 | 14.7 |        
     197 |          MASTER-IAC |  P| |    40 | 14.7 |        
     256 |          MASTER-IAC |  P| |    50 | 15.2 |        
     325 |          MASTER-IAC |  P| |    60 | 15.6 |        
     412 |          MASTER-IAC |  P| |    70 | 15.6 |        
     505 |          MASTER-IAC |  P| |    90 | 15.0 |        


The observation and reduction will continue. 
The message may be cited.