\begin{table}%t4
 \caption{Momentum flux of CO~\molline{2}{1} calculated as in \citet{bontemps1996}.
}
% title of Table   % is used to refer this table in the text       
%\begin{center}
\par
\begin{tabular}{cccccccc}
\hline
\hline
 & $\Delta \varv_{\rm b}$ & $\Delta \varv_{\rm r}$ & $F_{{\rm CO_{b}}}$ & $F_{{\rm CO_{r}}}$ & $F_{{\rm CO_{total}}}$ & Ext. blue & Ext. red \\
 \noalign{\smallskip}
 & [\kms] & [\kms] & [\msolkmsy] & [\msolkmsy] & [\msolkmsy] & & \\
\hline
&&&&&&&\\
MM1 & (13.0,27.4) & (39.4,54.0) & 0.44~$\pm$~0.12~\ttp{-3} & 1.86~$\pm$~0.11~\ttp{-3} & 2.30~$\pm$~0.23~\ttp{-4} & 17\arcsec~$\times$~11\arcsec  & 46\arcsec~$\times$~45\arcsec \\
MM2 & (10.0,23.8) & (35.8,58.0) & 0.48~$\pm$~0.09~\ttp{-3} & 1.86~$\pm$~0.15~\ttp{-3} & 2.34~$\pm$~0.24~\ttp{-4}  & 40\arcsec~$\times$~25\arcsec & 26\arcsec~$\times$~22\arcsec \\
\hline
\end{tabular}
%\end{center}
\par
\label{tab:outflow}
\end{table}