Abstract
We report on the radio properties of jets of the following microquasars, as determined from daily multi-frequency monitoring observations with the RATAN-600 radio telescope during 2010–2017: V404 Cyg, SS433, Cyg X-1, GRS1915+105 and LSI+61 ∘ 303. We have detected many giant flares from SS433, a powerful flare from V404 Cyg in June 2015, an active state of Cyg X-1 in 2017 and fifty periodic flares from LSI+61 ∘ 303. We describe the properties of massive ejections based on multi-band (radio, X-ray and γ -ray) studies. The general properties of the light curves are closely connected with the processes of jet formation in microquasars.
Highlights
We report on the radio properties of jets of the following microquasars, as determined from daily multi-frequency monitoring observations with the RATAN-600 radio telescope during
V404 Cygni is a low-mass X-ray binaries (XRBs) consisting of a black hole of mass 9.0 M, accreting matter from a low-mass (
SS433 is a bright microquasar that we have observed with RATAN-600 at 1.3–22 GHz [3]
Summary
The bright microquasars GRS1915+105, SS433, Cyg X-1, Cyg X-3, LSI+61◦ 303 and LS5039 are well-known X-ray binaries (XRBs) with relativistic jets, detected directly in the VLBI mapping. The radio emission of XRBs is mostly a variable synchrotron radiation from these jets, formed as a mass of ejections from central regions of an accretion disk within an intensive wind of the optical star. During 52 orbital periods (P1 = 26.5 d) we studied the super-orbital modulation (P2 = 1667 d) of the flaring radio emission from LSI+61◦ 303. We detected two giant flares from Cyg X-3 in September 2016 and in April 2017 at 1.3–30 GHz. We discuss the properties of these flares in the paper of the Proceedings of [4]
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