\begin{table}%T4
\caption{Line parameters for all absorption lines.}
\small%\centerline
{
\begin{tabular}{lrrr}
\hline \hline
Line & $E_{\rm{u}}/k$ & $n_{\rm{crit}}$ & $\Delta v$\\
     & [K]          & [cm$^{-3}$]       & [km~s$^{-1}$] \\
\hline
NH$_3$(1,~1)                 & 24 & 2.1e3 & $1.4\pm 0.4$ \\
NH$_3$(2,~2)                 & 65 & 2.2e3 & $2.0\pm 0.3$ \\
CH$_3$OH$(3_{2,1}{-}3_{1,2})$ & 36 & 1.0e4 & $1.8\pm 0.1$ \\
CH$_3$OH$(4_{2,2}{-}4_{1,3})$ & 45 & 1.2e4 & $2.1\pm 0.1$ \\
CH$_3$OH$(2_{2,0}{-}2_{1,1})$ & 29 & 0.8e4 & $1.7\pm 0.1$ \\
HCN(1$-$0)                   &  4 & 2.6e6 & $15.4\pm 0.3$ \\
\hline  
\end{tabular}}
\smallskip
 The NH$_3$ and CH$_3$OH data are from \citet{beuther2005e}. 
  The listed parameters are the upper level excitation energies 
  $E_{\rm{u}}/k$, the critical densities $n_{\rm{crit}}$ calculated at 
  60~K and the observed line widths of the absorption lines toward the 
  UCH{\sc ii} region peak position. 
\label{lines_old}
\end{table}