Mass loading and knot formation in AGN jets by stellar winds
  Jets from active galaxies propagate from the central black hole out to the
radio lobes on scales of hundreds of kiloparsecs. The jets may encounter giant
stars with strong stellar winds and produce observable signatures. For strong
winds and weak jets, the interaction may truncate the jet flow during its
transit via the mass loading. For weaker jets, the interaction can produce
knots in the jet. We present recent 3DMHD numerical simulations to model the
evolution of this jet-wind interaction and its observational consequences. We
explore (i) the relative mechanical luminosity of the radio jets and the
stellar winds (ii) the impact parameter between the jets' axis and the stellar
orbital path (iii) the relative magnetic field strength of the jets and the
stellar winds.
