Emission line profiles at two spatial positions in the X-shooter data. Left: blue-shifted jet; right, the source position. All velocities are given with respect to the LSR. The estimated radial velocities of the blue- and red-shifted lobes are shown with vertical blue and red dashed lines at −100 km s⁻¹ and +20 km s⁻¹, respectively, while the 0 km s⁻¹ velocity position is shown with the vertical black line.