Table 2:

Different molecular features and the properties of the specific lines used for the line profile modelling here (and in Papers I and II).

	Specific line chosen for modelling
Line type	designation	[cm-1]	[m]
CN = -2 red	1-3 Q24.5	4871.3400	2.0528
CO = 3	5-2 P30	6033.8967	1.6573
CO = 2 high-exc.	2-0 R82	4321.2240	2.3142
CO = 2 low-exc.	2-0 R19	4322.0657	2.3137
CO = 1	1-0 R1	2150.8560	4.6493

Notes. The lines were chosen according to the criteria given in Sect. 5.1 of Paper I. The values given here correspond to the rest wavelengths or central frequencies  as used in Eq. (3). Throughout this work we will use only a low-excitation first overtone CO line (i.e. CO 2-0 R19) denoted by CO  = 2, while the high-excitation line CO 2-0 R82 is merely listed for completeness as it was used in Papers I and II. This distinction is necessary as the two types of lines (at least the ones used by HHR82 and similar studies) behave differently in kinematics studies (see Fig. 17).