\begin{table}%t3 %\centering \par \caption {\label{model_fs}PDR model fit to the observed atomic fine structure line integrated intensities in IRS1.} \begin{tabular}{lcccc} \hline\hline \noalign{\smallskip} Species & Total &hot &Cool & Obs. \\ & (K km~s$^{-1}$) & (K km~s$^{-1}$) & (K km~s$^{-1}$) & (K km~s$^{-1}$) \\ \hline \CII &19.3--21.9 & 16.5 & 2.8--5.4 & 37.\\ \CI(1--0) & 9.7--11.0 & 1.5 & 8.2--9.5 & 11.4 \\ \CI(2--1) & 6.9--8.5 & 1.7 & 5.2--6.8 & 20.5 \\ \hline \end{tabular} \tablefoot{ Shown are the ranges spanned by the two fits.} \vspace*{-6mm} \end{table}