Proper Motions Within the HH 111 Jet
This figure shows the internal motions, with error bars, of the
motions within a jet. For the first time differences in the
internal velocities within the jet are large compared with the
errors. The figure shows graphically that the internal shock speeds within
the HH 111 jet are a few tens of km/s. The boxes are H-alpha and the
asterisks [S II].