\begin{table}%tA.1
\caption{\label{CoG_ice}Ice profiles used for calculating the curve-of-growth.}
\par
%\centering
\par
\begin{tabular}{ c c }
\hline\hline  \noalign{\smallskip}
Molecule       & Ice profile                                       \\
\hline  
CO$_2$         & H$_2$O: CO$_2$ ice mixture at 14 K                   \\
CO             & Gaussian profile ({\it FWHM} = 6.89 cm$^{-1}$, $\lambda_{\rm center}$ = 4.67 $\mu$m)   \\[2pt]
\hline                                                                    
\end{tabular}
\end{table}