[vsnet-grb-info 22000] LIGO/Virgo S190412m: MASTER early alert observation

GCN Circulars gcncirc at capella2.gsfc.nasa.gov
Fri Apr 12 16:46:03 JST 2019


TITLE:   GCN CIRCULAR
NUMBER:  24099
SUBJECT: LIGO/Virgo S190412m: MASTER early alert observation
DATE:    19/04/12 07:45:57 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

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

R. Podesta, C. Lopez, C.Francile, F. Podesta (Observatorio Astronomico  Felix 
Aguilar OAFA, San Juan National University),

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

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

D. Buckley (South African Astronomical Observatory),

O. Gress, N.M. Budnev, O.Ershova (Applied Physics Institute, Irkutsk State 
University),

V. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev (Blagoveschensk EducationState 
University),

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

MASTER Global Robotic Net (http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy,vol. 2010, 30L)
automatically started LIGO/Virgo S190412m alert observations (Sjawhan et al. GCN 24098)

MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan 
National University) was pointed to the  LIGO/Virgo S190412m alert
  20 sec after notice time and 3839 sec after trigger time at 2019-04-12 06:34:43 UT.
The 5-sigma upper limit has been about  18.16mag on the first image.


  Reduction and observation will be continued.

The message may be cited.



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