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Magnetic field estimation in Cyg X-3's jet

R. N. Ogley, S. J. Bell Burnell, R. P. Fender, G. G. Pooley, E. B. Waltman, M. van der Klis

astro-pharXiv:astro-ph/9808019

Abstract

Multi-wavelength photometric observations of Cygnus X-3 were carried out at 18 cm through to 450 um, complemented by X-ray (2-10 keV) observations. The system was mildly active with cm fluxes at 150 -- 250 mJy. We find the spectrum to be flat with a spectral index of zero. Using a modified Wolf-Rayet wind model, and assuming emission is generated in synchrotron emitting jets from the source, we find an upper-limit to the magentic field of 20 G at a distance of 5 × 1012 cm is required.

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