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Fig. 2


Mopra spectra (Tmb) of the CO(1–0) line at 115 GHz in NGC 625, Haro 11, and UM 311. The (0,0) position in NGC 625 (pointing 3) has coordinates (RA,Dec) = (01h35m05.46s, − 4d26m09.6s). The spectral resolution for the display is 15 km s-1, corresponding to ~5.8 MHz. The orange curve shows the fit to the line when detected. The vertical dashed lines indicate the expected position of the line, based on the central velocity of the other CO transitions. Central velocities of [C ii], H i, and Hα, and their dispersions are also indicated in blue, green, and red, respectively. All velocities are indicated in the local standard-of-rest (LSR) reference frame.

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