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	Figure 1: Midplane velocity field distribution for the jet models A ( top), B ( middle) and C ( bottom), at . See the text for details.
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In the text

Figure 2: a) Midplane density contour ( left panel) and velocity field ( rigth panel) distributions for the model C (see Table 1), at which approximately corresponds to the dynamical age of the DG Tau microjet; b) average radial velocities across the jet for the different positions along the beam that are marked in Fig. 2a, above. We notice that the jet axis is actually located at due to the effects of the precession. The vertical bars indicate the maximum and minimum values of the radial velocities obtained for each radial distance (the distances are in units of the jet radius); c) radial velocity differences between positions across the jet which are symmetric with respect to the jet center, as a function of the radial distance. Crosses: our results. Full line: an approximate fitting to Bacciotti et al. (2002) observations and Pesenti et al. (2004) results (the distances are in units of AU and the velocities in units of km s-1).

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In the text

	Figure 3: Midplane velocity field distributions for the purely hydrodynamical model D ( left) and for the MHD model E ( right) of Table 1, at . The distances are in units of (38 AU).
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In the text