Relativistic Jet in the X-ray Binary Cygnus X-3

Details Relativistic Jet in the X-ray Binary Cygnus X-3 Relativistic Jet in the X-ray Binary Cygnus X-3

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...19111001m&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #110.01; Bulletin of the American Astronomical Society, Vol. 29, p.1387

Astronomy and Astrophysics

Astronomy

3

Scientific paper

The X-ray binary Cyg X-3 experiences coincident radio and hard X-ray flares which are associated on VLBI scales with ejection of material in the form of a jet. The radio light curves for Cyg X-3 show 3 states: quiescence (flux densities ~ 100 mJy), quenched (flux densities ~ 10 mJy), and large outbursts (flux densities > 1 Jy). Large flares are always preceded by a quenched state. We present VLBA 2 cm observations of Cyg X-3 after a 10 Jy radio flare that peaked on 4 February 1997. These shows a one-sided curved jet and stationary core, this is first one-sided jet seen in the Galaxy. Assuming there is a two sided jet and relativistic affects boost the flux of the approaching jet and dim the flux of the receding jet causing the appearance of a one-sided jet, the implied speed of the jet is >0.8c. During individual observations the flux in the core varies by a factor of two or more and the core does not change size.

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