\begin{table}%t2 \caption{\label{t:chosenlines}Different molecular features and the properties of the specific lines used for the line profile modelling here (and in Papers~I and~II).} %\centering \par \begin{tabular}{llcc} \hline\hline \noalign{\smallskip} &\multicolumn{3}{c}{Specific line chosen for modelling}\\ \multicolumn{1}{c}{Line type}&designation&$\sigma / wn$ [cm$^{-1}$]&$\lambda$ [$\mu$m]\\ \hline CN $\Delta v$ = --2 red&1--3 Q$_2$4.5&4871.3400&2.0528\\ CO $\Delta v$ = 3&5--2 P30&6033.8967&1.6573\\ {\it CO $\Delta v$ = 2 high-exc.}&{\it 2--0 R82}&{\it 4321.2240}&{\it 2.3142}\\ \hline CO $\Delta v$ = 2 low-exc.&2--0 R19&4322.0657&2.3137\\ \hline CO $\Delta v$ = 1&1--0 R1&2150.8560&4.6493\\ \hline \end{tabular} \tablefoot {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~$\nu_0$ as used in~Eq.~(\ref{e:kappaLL}). Throughout this work we will use only a low-excitation first overtone CO~line (i.e.~CO~2$-$0~R19) denoted by CO~$\Delta v$~=~2, while the high-excitation line CO~2$-$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.~\ref{f:rvs-chicyg-scep}).} \vspace*{-3mm} \end{table}