Apparent superluminal expansion in Cygnus X-3

摘要: The Galactic radio-emitting X-ray binary Cygnus X-3 is known to be a source of large-scale radio jets associated with periods intense flaring. These have been found an expansion velocity ∼0.3c and are believed (on kinematic grounds) lie close the plane sky. We present new observations using VLBA at 15 GHz. observations, which included detection two small flares, show additional kind behaviour apparent superluminal along both major minor axes. Evidence for activity has in number systems such as GRS 1915+105 GRO J1655−40 their jets. Apparently similar morphologies extragalactic jet sources led binaries being described ‘micro-quasars’. seen our results appears different nature from these other sources, mechanisms presented discussed.