Fig. 3
Emission line ratios for six knots in the blue (open symbols) and red (filled symbols) lobes. Contours indicate the predicted ratios by the models of Hartigan et al. (1994) for a grid of pre-shock densities, magnetic field strengths, and shock velocities. The colored symbols correspond to models with νshock = (15,20,25,30,35,40,50,60,70,80,90,100) km s-1.
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