Observed and modeled longitudinal position-velocity (PV) diagrams in CARMA-7. (α) Longitudinal PV diagram of CARMA-7 inside a 374 au-wide cut along the outflow axis, as observed in ¹²Co(2–1) by Plunkett et al. (2015). (b) Synthetic longitudinal PV diagram along a 400 au-wide cut, at t = 500 yr, and inclination i= 85^° from the line of sight. Parameters are the same as for the model shown in Fig. 5 except for a shorter jet variability period P = 30 yr. (c) Same as (b) but including only the core-originated material.