Fig. 10.
Scatter plots between molecular gas mass |$(M_{^{13}{\rm CO}})$| and three integrated intensity ratios (left, three panels) and those between virial parameter and line ratios (right, three panels).
Scatter plots between molecular gas mass |$(M_{^{13}{\rm CO}})$| and three integrated intensity ratios (left, three panels) and those between virial parameter and line ratios (right, three panels).
