Integrated CO(2−1) emission toward SW-Bar (top) and NE-Bar (bottom) regions. Only for this figure, both CO maps were smoothed with a Gaussian kernel of a radius of 2 pixels to improve the S/N. The beam size (30″ or ~9 pc at the SMC distance) and the integration range (∆V) are indicated at the bottom of the left panels. In the right panels, the integrated CO contours (determined with the moment masked method, see Sect. 4) are overlapped to the dust-based total column density from Jameson et al. (2016). The CO contours in the SW and NE regions correspond to emissions at 1.5, 4.5, and 10.0 K kms⁻¹ and 1.0, 2.0, and 4.5 K kms⁻¹, respectively.