%0 Journal Article
%T A One-sided, Highly Relativistic Jet from Cygnus X-3
%A Amy J. Mioduszewski
%A Michael P. Rupen
%A Robert M. Hjellming
%A Guy G. Pooley
%A Elizabeth B. Waltman
%J Physics
%D 2001
%I arXiv
%R 10.1086/320965
%X Very Long Baseline Array images of the X-ray binary, Cygnus X-3, were obtained 2, 4 and 7 days after the peak of a 10 Jy flare on 4 February 1997. The first two images show a curved one-sided jet, the third a scatter-broadened disc, presumably at the position of the core. The jet curvature changes from the first to the second epoch, which strongly suggests a precessing jet. The ratio of the flux density in the approaching to that in the (undetected) receding jet is > 330; if this asymmetry is due to Doppler boosting, the implied jet speed is > 0.81c. Precessing jet model fits, together with the assumptions that the jet is intrinsically symmetric and was ejected during or after the major flare, yield the following constraints: the jet inclination to the line of sight must be < 14 degrees; the cone opening angle must be < 12 degrees; and the precession period must be > 60 days.
%U http://arxiv.org/abs/astro-ph/0102018v1