Fig. 15.

Emission spectra extracted at the position of the AGN from the MSR data set for the J = 2 − 1 line of CO (left panel), the J = 3 − 2 line of CO (middle panel), and the J = 4 − 3 line of HCO+ (right panel) using a common aperture of ≃6–7 pc-size (yellow-filled histograms). We also show in blue-hatched histograms the corresponding spectra obtained from the HSR data set using a common aperture of ≃2–3 pc. The red line highlights the value of km s−1 in each panel.
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