SS 443: multicolour observations 1982-1990

Details SS 443: multicolour observations 1982-1990 SS 443: multicolour observations 1982-1990

2010-11-03

arxiv.org/abs/1011.0923v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

23 pages, 10 figures

Scientific paper

We report BVR photometry of the V1343 Aql= SS 433 microquasar at different phases of the 13--day orbital cycle for the 1986--1990 observing seasons. The data include five complete cycles of the 163$^{d}$ precession period of the system. We obtain mean light curves and color--color diagrams with the orbital period for all intervals of precession phases. The optical component of the close binary system (CBS) fills its critical Roche lobe and loses mass on the thermal relaxation time scale. Gaseous flow show up actively in the system and activity manifestations differ substantially at different precession phases. The collimated relativistic jets perpendicular to the plane of the disk appear to be associated with supercritical accretion onto the compact relativistic object in the massive CBS, which shows up in the shapes of the light curves at different orbital and precession phases. An analysis of color indices confirmed the earlier discovered peculiarities of the system.

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