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The RATAN-600 monitoring of the V404 Cyg

ATel #8482; S. A. Trushkin, N. A. Nizhelskij, P. G. Tsybulev (SAO RAS, Russia)
on 31 Dec 2015; 13:02 UT
Credential Certification: Sergei Trushkin (satr@sao.ru)

Subjects: Radio, Millimeter, Infra-Red, Optical, X-ray, Gamma Ray, >GeV, Request for Observations, Binary, Black Hole, Transient

Referred to by ATel #: 8489, 8499, 8501, 8520

We continue to observe black hole binary V404 Cyg beginning from our first measurements at 23 December 2015 (ATel #8454) with the RATAN-600 radio telescope. Daily we have detected the radio emission at level 15-50 mJy at frequencies 4.6, 8.2 and 11.2 GHz, but today 31 Dec (MJD 57387.42) the fluxes at the frequencies reached 70-76 mJy (errors 6%) with flat radio spectrum, with accordance with increased X-ray activity detected by Swift and INTEGRAL (ATel #8462, #8475). Sure we will continue observations of V404 Cyg just after New Year holiday.