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Fig. 5


HCN(4–3)/CO(3–2), CS(7–6)/CO(3–2) and HCN(4–3)/ HCO+(4–3) velocity-integrated intensity ratios in the CND. The filled ellipses represent the spatial resolutions used to derive the line ratio maps: 0.6′′ × 0.5′′ PA = 60°, for all panels.

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