Monitoring and modeling radio flares from microquasars

Details Monitoring and modeling radio flares from microquasars Monitoring and modeling radio flares from microquasars

2000-11-03

arxiv.org/abs/astro-ph/0011080v1

Astrophys.Space Sci. 276 (2001) 135-137

Astronomy and Astrophysics

Astrophysics

2 pages, LaTeX, kluwer.cls, 1 figure, to be published in `Proceedings of the Third Microquasar Workshop: Granada Workshop on g

Scientific paper

We present results of long-term daily monitoring of a sample of Galactic radio-emitting X-ray binaries showing relativistic jets (RJXRB): SS433, Cyg X-3, and GRS 1915+105, with the RATAN-600 radio telescope in the 0.6-22 GHz range. We carried out the modeling calculations to understand the temporal (1--100 days) and spectral (1-22 GHz) dependence. We tested the finite jet segment models and we found that the geometry of the conical hollow jets is responsible for either a power law or an exponential decay of the flares. SS433 was monitored for 100 days in 1997 and 120 days in 1999. From the quiescent radio light curves, we obtained clear evidence of a 6.04-day 10-15% modulation. Three powerful flares (up to 13 Jy) from Cyg X-3 were detected in April 2000.

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