Comparison of the low-velocity outer CO outflow with a classical WDS model. Left panel: ¹²CO individual channel maps at different line-of-sight velocities tracing the low-velocity outer CO outflow. The white contours trace the model of a WDS of parabolic shape defined by C = 10⁻³ au⁻¹, dynamical age τ = 6000 yr and specific angular momentum j = 250 ± 50 au km s⁻¹ with an inclination of i = 117°. Right panel: transverse PV cut at δz = 7.5″ averaged over a slice of ∆Z = 0.2″. The red ellipse traces the WDS model. (V − V_sys) units are km s⁻¹.