Position velocity diagrams extracted along the outflow axis (PA = 60°) with a pseudo slit width of 1″. Upper panel: Position velocity diagram of the [Fe II] emission line region. The emission is traced from the source at 0″ and culminates in a bow shock at $\sim 1\stackrel{″}{.}0$ (450 au). The radial velocity of the jet emission traced in this line peaks at approximately −200 km s⁻¹, in agreement with previous observations. Lower panel: Position velocity diagram of the Brackett-γ emission line region. The emission is again traced from the source and culminates in a bow shock at $\sim 1\stackrel{″}{.}0$ (450 au). The radial velocity of the jet emission traced in this line peaks at approximately −200 km s⁻¹. The spatially extended low-velocity Br-γ emission here, that is, the emission centred around 0 km s⁻¹ and having a full width extending to approximately ±180 km s⁻¹, is not intrinsic emission, it is instead light scattered off of the nebulous cavity material. Contour levels for both begin at 3σ of the background emission and increase by factors of 1.2. Velocities are expressed with respect to the LSR.