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Table 2

List of molecules as provided by the aer line parameter database.

# Molecule Chemical name In standard GUI

1 H2O Water X f
2 CO2 Carbon dioxide X f
3 O3 Ozone X f
4 N2O Nitrous oxide X f
5 CO Carbon monoxide X f
6 CH4 Methane X f
7 O2 Oxygen X f
8 NO Nitric oxide X c
9 SO2 Sulfur dioxide X c
10 NO2 Nitrogen dioxide X c
11 NH3 Ammonia X c
12 HNO3 Nitric acid X c
13 OH Hydroxyl
14 HF Hydrogen fluoride
15 HCl Hydrogen chloride
16 HBr Hydrobromic acid
17 HI Hydrogen iodide
18 ClO Chlorine monoxide X c
19 OCS Carbonyl sulfide X c
20 H2CO Formaldehyde
21 HOCl Hypochlorous acid X c
22 N2 Nitrogen X c
23 HCN Hydrogen cyanide X c
24 CH3Cl Chloromethane
25 H2O2 Hydrogen peroxide X c
26 C2H2 Acetylene X c
27 C2H6 Ethane X c
28 PH3 Phosphine
29 COF2 Carbonyl fluoride X c
30 SF6 Sulfur hexafluoride X c
31 H2S Hydrogen sulfide
32 HCOOH Formic acid
33 HO2 Hydroperoxyl
34 O Oxygen
35 ClONO2 Chlorine nitrate X c
36 NO+ Nitrosonium
37 HOBr Hypobromous acid
38 C2H4 Ethylene
39 CH3OH Methanol
40 BrO Bromine Monoxide
41 C3H8 Propane
42 C2N2 Cyanogen

Notes. Column 1: reference number of the molecule as defined in the HITRAN 2008 database; Col. 2: its chemical formula, followed by its chemical name. Column 3 indicates if an atmospheric profile of the molecular volume mixing ratio is available in the equatorial standard profile as included in molecfit. Last column: functionality available through the GUI: f the corresponding column density can be fitted, c the corresponding transmission spectrum is only calculated using the user provided abundance, relative to the one fixed in the reference atmosphere.

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