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Fig. 6

image

Column densities for new and existing data. Left: N(CS) vs. N(HCN). The regression line is a power law of slope 0.85 fit to theexisting data for clouds seen locally by Liszt & Lucas (2001) and Lucas & Liszt (2002). The velocities of features arising in the bulge toward J1744 are indicated. The disk gas toward J1744 is shown separately for positive and negative velocities. Right: N(C2H) vs. N(HCO+). The regression line is a power law of slope 0.70 fit to the existingdata for clouds shown in Fig. 4 of Lucas & Liszt (2000).

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