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Table A.1

Species included in the FLiTs models.

Species Treatment #Levels #Lines Species Treatment #Levels #Lines
C+ Non-LTE 18 57 H Non-LTE 25 75
O Non-LTE 3 3 HNC Non-LTE 26 25
CO Non-LTE 41 40 o-NH3 Non-LTE 22 24
O Non-LTE 91 647 p-NH3 Non-LTE 24 28
C Non-LTE 59 117 Ar+ Non-LTE 2 1
Mg+ Non-LTE 8 12 Ar++ Non-LTE 5 9
Fe+ Non-LTE 120 956 O++ Non-LTE 6 11
Si+ Non-LTE 15 35 O+ Non-LTE 5 10
S+ Non-LTE 5 9 S++ Non-LTE 5 9
o-H2 Non-LTE 80 803 Ne++ Non-LTE 5 9
p-H2 Non-LTE 80 736 N++ Non-LTE 2 1
CO Non-LTE 360 2699 C18O Non-LTE 41 40
o-H2O Non-LTE 411 4248 H2CO_H LTE 3134 1567
p-H2O Non-LTE 413 3942 CO2_H LTE 252 126
13CO Non-LTE 41 40 C2H2_H LTE 1992 996
OH Non-LTE 20 50 HCN_H LTE 252 126
SiO Non-LTE 41 40 CH4_H LTE 430 215
NO Non-LTE 80 139 NH3_H LTE 5932 2966
S Non-LTE 3 3 OH_H LTE 2528 1264
CS Non-LTE 31 30 p-H2CO Non-LTE 41 107
HCN Non-LTE 30 29 N2H+ Non-LTE 31 30
CN Non-LTE 41 59 C2H Non-LTE 102 245
HCO+ Non-LTE 31 30 CO+ Non-LTE 9 11
CH+ Non-LTE 16 15 OH+ Non-LTE 49 152
N+ Non-LTE 23 86 O2 Non-LTE 48 77
OH-hfs Non-LTE 24 95 o-H2S Non-LTE 45 139
o-H2CO Non-LTE 40 104 p-H2S Non-LTE 45 140
Ne+ Non-LTE 3 3 HCS+ Non-LTE 31 30
SO Non-LTE 91 301 E-CH3O Non-LTE 256 2324
SO2 Non-LTE 198 855 A-CH3O Non-LTE 256 1853
OCS Non-LTE 99 98 C17O Non-LTE 41 40
o-H3O+ Non-LTE 9 8 O2_H LTE 0 0
p-H3O+ Non-LTE 14 17 NO_H LTE 372 186
CH3OH_H LTE 28 570 14 285 CS_H LTE 14 7
SO2_H LTE 41 590 20 795 p-C3H2 Non-LTE 48 154
o-C3H2 Non-LTE 47 156

Notes. For non-LTE molecules, the level populations are computed using escape probabilities (Woitke et al. 2009). The transition data for the LTE species come from the HITRAN database (denoted by “_H”). Selection rules are used to limit the number of ro-vibrational lines selected from HITRAN, for computational reasons (Woitke et al. 2018).

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