Jet deceleration: the case of PKS 1136-135
  Modeling the multiwavelength emission of successive regions in the jet of the quasar PKS 1136-135 we find indication that the jet suffers deceleration near its end. Adopting a continuous flow approximation we discuss the possibility that the inferred deceleration is induced by entrainment of external gas. 
F. Tavecchio, L. Maraschi, R.M. Sambruna