Fig. B.2
H2 excitation diagram comparisons. Upper panel: evolution of the modelled excitation diagram obtained for ζ1 = 5 × 10-17 s-1, varying the initial value of the OPR from the unrealistic, extreme-case 0 value to its equilibrium one, 3. Lower panel: influence of the cosmic ray ionisation rate variation on our modelled excitation diagram, with the initial OPR set to 3.
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