Figure 8.

Electron energy transfer rates. Log₁₀ of electron energy transfer rates as a function of electron temperature for electron impact excitation of CO(0 → ν') for ν' = 1 – 13 (——— as labelled), for their sum ("sum CO") and for CO₂ (- - -) as given by Morrison and Greene [1]. The rate for CO(0 → 1) calculated with the cross sections of Poparić et al. [7] is also shown (– – –), as is the rotational excitation (J = 0 → 1) using the cross sections of Randell et al. [16] (· · ·).