Model datacube of a Bow Shock

Bow shock models for the system shown in Fig. 3 for two different orientations phi of the axis of the bow to the line of sight. The large linewidths (white) and most negative radial velocities (blue) occur near the apex in both cases, but as the viewing angle decreases the bow appears wider and the shift of the high radial velocity material from the apex of the bow becomes more pronounced.