The going-on bright flare from the X-ray binary Cygnus X-3

Опубликовано: 04 / 2024
The going-on bright flare from the X-ray binary Cygnus X-3
The light curves at 2.3-30 GHz during the March-April flare from Cyg X-3


Trushkin S. A.; Bursov N. N.; Shevchenko A. V.; Nizhelskij N. A.; Tsybulev, P. G.

We carry out the long-term multi-frequency monitoring of the Galactic microquasars with the RATAN-600 radio telescope almost daily in 2024 at 1.24-30 GHz. We have detected the activity from the microquasar Cygnus X-3 on 27 March after the long period of the very low hard X-ray state at 15-50 keV, named by a hyper-soft state, as according to the Swift/BAT public domain data. After 31 March (MJD 60399.218) we have detected the start of a giant flare from the object, which reached maximal flux densities about 14 Jy at 2.3 GHz on 3 April (MJD 60403.21).

Наблюдательная заявка
Прием заявок на наблюдательное время осуществляется интерактивно дважды в год: с 1 февраля по 10 марта и с 1 августа по 10 сентября.