\begin{table}%t2
\caption{\label{5:tab:line_res}Observed molecular line intenstities$^a$. }
\par
%\centerline
{\small
\begin{tabular}{l l l l l l l l}
\hline \hline
Line & Transition & \multicolumn{4}{c}{Central position} &\multicolumn{2}{c}{Envelope/outflow position$^b$} \\
& & $\int T_{\rm{MB}} {\rm d}V^c$ & $T_{\rm{peak}}$ & Red & Blue& $\int T_{\rm MB} {\rm d}V^c$& $T_{\rm{peak}}$  \\
 &  & (K km s$^{-1}$) & (K) &  (K km s$^{-1}$) &  (K km s$^{-1}$) & (K km s$^{-1}$) & (K)  \\ 
 \hline
CO & 2--1 & 53.3 & 22.4 & 11.5   & 3.8 & 61.7 & 21.2 \\
 & 3--2   & 82.5 & 19.4 & 28.0  & 13.4& 65.6 & 19.8\\
  & 4--3 & 70.5& 14.9 & 44.2 & 3.7 & 38.5 & 14.0\\
 & 6--5 & 42.6 & 9.5 & 11.7 & 5.7 & 34.6  & 8.8\\
 & 7--6 & 46.5 & 8.6 & 17.6 & $<$3.7 & 25.3 & 5.9  \\
 $^{13}$CO & 3--2 & 14.3 & 11.4 & -- & -- & -- & --\\
& 4--3 & 8.0 & 5.5 & -- & -- & -- & -- \\
 & 6--5 & 3.9 & 2.9 & --&-- & $<$0.6$^d$ & -- \\
 & 8--7 & -- & $<$0.9$^c$ & --&-- & -- & -- \\
 C$^{18}$O & 3--2 & 3.2 & 3.3 & -- & -- & -- & --\\
          & 6--5 & -- & $<$0.5$^d$&-- &-- & -- & --\\
$[$C I$]$ & 2--1 & 2.3 & 2.7 &-- & -- & -- & $<$1.8$^d$ \\
HCO$^+$ & 4--3 & 8.5 & 5.4 & 1.4 & -- & -- & $<$0.9$^d$ \\
H$^{13}$CO$^+$ & 4--3 & 1.1 & 1.0  & --& -- & -- & --\\ \hline 
\end{tabular}}
\par
\medskip
$^a$ Red and Blue shifted emission are calculated by subtracting the central part of the line profile with a Gaussian with {\it FWHM} of 1.5--2~km~s$^{-1}$.\\
$^b$ Position: $\Delta$RA = $-20''$, $\Delta$Dec = $-20''$. \\
$^c$ Velocity range used for integration: $-5$~km~s$^{-1}$ to 15~km~s$^{-1}$\\
$^d$ Upper limit of 3$\sigma$ in a 0.7~km~s$^{-1}$ channel.
\end{table}