Two-sided jet mass-loss rates (Ṁ_jet in M_⊙ yr⁻¹, left), and jet mechanical luminosities (L_jet in L_⊙, right) versusthe source internal luminosity (L_int in L_⊙). The values are inferred for the 12 Class 0 protostars driving an SiO jet detected at > 10σ in the integrated maps (see Table 3). Ṁ_jet and L_jet are the sum over the closest blue- and red-shifted SiO knots, B and R (see Tables 4 and 5). Lower and upper limits are indicated by upward and downward arrows. The jet knots where no CO is detected (the “CO-poor” jets) are indicated by larger empty diamonds. For the jets with only one “CO-poor” lobe, the total Ṁ_jet and L_jet is dominated by the estimate obtained for the other lobe, hence, they show up as a firm value or lower limit (depending if CO in the other lobe is optically thin or thick). The exception is SVS13B for whichno CO is detected in both lobes, hence, only an upper limit is derived for the total Ṁ_jet and L_jet. The black lines in the left panel indicate Ṁ_jet = [0.01, 0.1, 1] × Ṁ_acc, with Ṁ_acc estimated from L_int, assuming a protostellar mass of 0.05 M_⊙ or 0.25 M_⊙ (solid and dotted lines, respectively). The Ṁ_acc values labeled on the upper x-axis correspond to M_* = 0.05 M_⊙. The black solid lines in the right panel indicate L_jet = [0.01, 0.1, 0.5, 1] × L_int.