GCN Circular 25105
Subject
MASTER OT detection inside LIGO/Virgo S190718y error box
Date
2019-07-19T15:15:45Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, N.Tyurina , P.Balanutsa, F.Balakin,
V.Kornilov, D.Vlasenko, V.Vladimirov, D.Zimnukhov, A.Kuznetsov,
I.Gorbunov, A. Chasovnikov, V.Grinshpun, T.Pogrosheva (Lomonosov
Moscow State University, SAI, Physics Department),
R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres (The
Instituto de Astrofisica de Canarias),
R. Podesta, C. Lopez, C.Francile, F. Podesta (Observatorio Astronomico
Felix Aguilar OAFA, San Juan National University),
D. Buckley (South African Astronomical Observatory),
A. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),
H.Levato
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE,SJNU)
O. Gress, N.M. Budnev, O.Ershova
(Applied Physics Institute, Irkutsk Stat University),
V. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev
(Blagoveschensk Education State University),
MASTER OT J203053.79+384020.1 / AT2019lly discovery
MASTER-IAC auto-detection system discovered OT source at
(RA, Dec) = 20h 30m 53.79s +38d 40m 20.1s on 2019-07-18.92684 UT.
The OT unfiltered magnitude is 14.9m (limit 19.4m).
The OT is seen in 2 images. There is no minor planet at this place.
We have reference image without OT on 2019-07-09.14716 UT with unfiltered
magnitude limit 19.7m.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/203053.79384020.1.png
There is a DSS source inside 2" with mag = 20.0m.
This flash is registered in the error box GW S190718y,but is probably
unrelated to the GW event (Cataclysmic Variable)
MASTER cover map of Ligo/Virgo S190718y error-field inspection will be
available on-line at:
https://master.sai.msu.ru/site/master2/ligo_1.php?id=10491
This message may be cited.