Dissociative recombination of CO⁺ on its six lowest vibrational levels (, 1, 2, 3, 4 and 5): cross-sections summed-up over all the relevant symmetries – see Mezei et al. (2015). The dotted vertical indigo lines are the different ionization thresholds given by the vibrational levels of the molecular ion. The first ionization thresholds are indicated on the figures. The dark-green shorter vertical lines stand for the different dissociation limits measured from the initial vibrational levels of the ion, as follows: the dotted line (a) stand for the C(¹D) + O(¹D) limit, the solid lines (b) for the C(³P) + O(¹S) one, the dashed lines (c) for C(¹S) + O(¹D), and the dashed-dotted lines (d) for C(¹D) + O(¹S).