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Table A.1

Non-LTE model atoms, ions and molecules.

Species Levels/lines Coll. partners References

O I 3/3 p-H2, o-H2, H, H+, e 1, 1, 2, 3, 4
C II 8/14 p-H2, o-H2, H, e 3, 3, 3, 5
CH+ 16/15 H2, e 6, 7
HCO+ 31/30 H2 8
CO 41/40 p-H2, o-H2, H, He, 9, 9, 10, 11
OH 24/95 p-H2, o-H2 12,12
o-H2O 411/4248 He, H, H2, e 13, 14, 14, 14
p-H2O 413/3942 He, H, H2, e 13, 14, 14, 14
HCN 30/29 H2 3

Notes. The second column provides the number of levels and lines included.

Reference.

(6)

Hammami et al. (2009); Turpin et al. (2010), rates for He scaled by 1.39;

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