By modeling the multiwavelength emission of successive regions in the jet of the quasar PKS 1136-135, we find indications that the jet suffers deceleration near its end on a (deprojected) scale of ~400 kpc. We adopt a continuous flow approximation, and we discuss the possibility that the inferred deceleration from a Lorentz factor of Γ = 6.5 to 2.5 is induced by entrainment of external gas. Some consequences of this scenario are discussed.
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Tavecchio et al. (2006) studied this question.
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