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MASTER: optical V404 Cyg microquasar wake up

ATel #8453; V. Lipunov, E. Gorbovskoy, N. Tiurina, V. Kornilov, D. Vlasenko, I. Gorbunov, V. Vladimirov (M. V.Lomonosov Moscow State Univerity, SAI), V. Yurkov, Yu. Sergienko, A. Gabovich (Blagoveschensk State Pedagogical University), N. Budnev, O. Gress, K. Ivanov (Applied Physics Institute, Irkutsk State University)
on 23 Dec 2015; 12:33 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, X-ray, Gamma Ray, Binary, Black Hole, Gamma-Ray Burst

Referred to by ATel #: 8458, 8462, 8475, 8489, 8499, 8501, 8508, 8510, 8512, 8515, 8520, 8531

MASTER-Amur ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 349171 ) starts observations of current V404 activity (Swift trigger 668097, S.D.Barthelmy et al. GCN #18716) at 2015-12-23 09:14:02 UT (V.Yurkov et al., GCN #18717 ) just after the sunset .

MASTER-Tunka starts alert observations of V404 at 2015-12-23 10:16:20 UT (just after the sunset, 17447 sec after notice time and 17787 sec after trigger time).

There is fast about half-magnitude variability at the interval about 10min time scale.

Preliminary LC is available at http://master.sai.msu.ru/static/v404_23dec2015.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net