\begin{table}%T8
\caption{
Total cooling intensities of CO, \CI{}, \CII{}, and \OI{}.
%Units are in $10^{-4}$ erg~s$^{-1}$~cm$^{-2}$~sr$^{-1}$.
The values in parentheses show the relative
contribution to the sum $I_\RM{tot}$.
The total cooling efficiency $\epsilon_\RM{tot}$ is defined by
$I_\RM{tot}/I_\RM{IR}$.  For comparison, we also list the $\epsilon'$
defined by $(I_\RM{\CII}+I_\RM{\OI})/I_\RM{IR}$.
}\label{cooling-table}
\par
%\centerline
 {\small
\begin{tabular}{lccccc}
%\noalign{\smallskip} 
\hline \hline 
Intensity in [$10^{-4}$ erg~s$^{-1}$~cm$^{-2}$~sr$^{-1}$]&DR21~E{} & DR21~C{} & DR21~W{} & DR21~(OH) & DR21~FIR1\\
%\noalign{\smallskip} 
\hline
%%\noalign{\smallskip}
$I_\RM{CO}({=}\Sigma$ CO$_{1~\le ~J_\RM{u}~\le ~20}$)$\NOTE{a}$
  & 24.1 (28.8\%)&  51.3 (44.4\%)& 18.7   (53.7\%)&20.0  (75.9\%)& 13.4  (68.7\%)\\
$I_{\CI}({=}\Sigma$ \CI)$\NOTE{b}$
  & 0.22 (0.3\%) &  0.45 (0.4\%) & 0.23   (0.7\%) & 0.25 (0.9\%) & 0.27   (1.4\%)\\
$I_{\OI{}}({=}\Sigma$ \OI{})$\NOTE{b}$
  & 51.1 (61.1\%)&  55.6 (48.2\%)& 11.2   (32.1\%)& 3.78 (14.4\%)& 2.23   (11.4\%)\\
$I_{\CII{}}$                      
  & 8.2  (9.8\%)&   8.1  (7.0\%) & 4.7   (13.5\%) & 2.3  (8.8\%) & 3.6   (18.5\%)\\
%\noalign{\smallskip}
$I_\RM{tot}$
  & 83.62 (100\%)& 115.45 (100\%)& 34.83  (100\%) & 26.33 (100\%)& ${<}19.5$ (100\%) \\
$I_\RM{IR}$$\NOTE{c}$
  & 5500            &33900            &1810              &12700           &3680\\ 
%\noalign{\smallskip} 
\hline
$\epsilon_\RM{tot}$ [\%]    &  1.5           &  0.34           & 1.9              & 0.21           & 0.52\\
%\noalign{\smallskip} 
\hline
$I_{\CII+\OI}$ (\CII$+$\OI{}$_{63~\micron{}}$)       & 56.4 & 57.5 & 14.8 & 5.24& 5.38\\
$\epsilon'$ [\%]             &  1.0 &  0.17 &   0.82 & 0.04 & 0.15\\ 
\hline 
\end{tabular}}
\par
\medskip
$\NOTE{a}$
For CO we use the best fitting model (Sect.~\ref{rad-model}) and sum over all rotational lines up to
$J=20$.
$\NOTE{b}$
For \CIw{} and \OIw{}, we sum the observed intensities of both fine
structure lines.
$\NOTE{c}$
$I_\RM{IR}$ is the total observed infrared intensity (Table~\ref{iso-dust}).
\end{table}