Line flux vs. width density plot (arbitrary units) in the SW mosaic (see Fig. 6). The anticorrelation between line flux and width is quite remarkable in the lower panel (Brγ), where it takes the form of several narrow, densely populated streaks on the density plot. In the top panel (H₂), the anticorrelation is weaker than in the bottom panel and the density distribution is more diffuse, but one can still identify linear features, showing that such a correlation exists locally.