The observational positions and the radial CO line profiles of NGC 2613. Leftpanel: Pan − STARRSg-band image displaying an 11′×11′ area centered on NGC 2613. The solid circles indicate the location of IRAM 30 m beams with a ≈21.4″ diameter for the ¹²CO J = 1 − 0 spectral band. The dashed circles represent the background location for the PSW observations. The overlay contours are from a convolved 22 μm image from the WISE archive. For most galaxies, contour levels include 3σ, 10σ, and 50σ, with additional levels at 100σ and 150σ for those with more pronounced flux peaks, where 3σ corresponds to a median flux of 0.01 mJy. UGC 10288 is an exception, where the contour levels are 3σ and 10σ. Rightpanel: Integrated intensities of the ¹²CO J = 1 − 0 (top row), ¹³CO J = 1 − 0 (middle row), and ¹²CO J = 2 − 1 (bottom row) lines along the galaxy disc. The lines correspond to the numbered positions in the left panel. The filled diamond indicates the galaxy nucleus. The x-axis represents the projected distance to the minor axis as listed in Table 3. The right y-axes of the top two panels show the molecular gas column density N_H2 derived from the corresponding line.