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Table 9

Dynamical ages of the knots based on their jet lengths, i.e. separation from the candidate driving source, and their current velocities, v, where we adopt the space velocities when available, and otherwise the tangential velocities on the longest timescale available.

Knot F Driving YSO Length v τ dyn
candidate (pc) (km s-1) (yr)

MHO 2234-A2 1 MMS3 0.009 125 70
MHO 2234-B1 1 0.019 116 160
MHO 2234-D1+D2 1 0.048 110 420
MHO 2234-H1 1 0.123 72 1680
MHO 2234-I1 1 0.078 40 1900

MHO 2233-N 2 Ser-emb-11 0.174 42 4050
MHO 2235-I2 2 0.208 74 2750
MHO 2235-M4 2 0.264 44 5860

MHO 2235-A1 3 Ser-emb-17 0.028 54 507
MHO 2235-B 3 0.044 26 1650

Notes.The flow for each knot is given in Col. 2.

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