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Fig. C.4

image

NGC 4321. Upper left panel: SFR as a function of ΣH2. Upper right panel: SFR as a function of total gas surface density. Lower left panel: SFR as a function of atomic gas surface density. Lower right panel: molecular fraction versus the ISM pressure Ptot. The orange error bars take into account systematic uncertainties in the calibration of the SFR (0.1 dex) and the NH2/ICO conversion factor (0.3 dex).

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