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Fig. A.2

image

Cooling or deexcitation rate coefficients as a function of gas temperature for H2 colliding with H (orange) or H2 (black). The“old” rates (dotted lines) are the original implementation in DALI, based on Tielens & Hollenbach (1985). The “new” rates (symbols and solid lines) are as described in this Appendix.

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