Output of the RADEX models corresponding to a model with N(CH+) = 9 × 1014 cm-2, n(H2) = 105 cm-3, n(e−) = 10 cm-3, Tkin = 500 K. The blue symbols correspond to a model with excitation via collisions with H2, the green symbols to a model with excitation via H2 and electron collisions.
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