Surface density profiles for our sample galaxies. Different panels indicate the surface densities for different galaxies, as mentioned in the top right corner of each panel. The cyan pluses, the red triangles, and the blue circles represent the stellar, the atomic, and the molecular surface density profiles, respectively. The stellar surface density profiles are taken from Leroy et al. (2009), whereas the atomic and the molecular surface density profiles are obtained from Schruba et al. (2011).
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