\begin{table}%t10
\caption{\label{t10}Parameters of the ammonia cores derived from the VLA maps.}
%\centerline
{
\begin{tabular}{cccccccc}
\hline\hline\noalign{\smallskip}
Name & $\Theta_{\rm HP}$\tablefootmark{a} & $\Theta_{\rm S}$\tablefootmark{a} & $D$ & $M_{\rm NH_3}$\tablefootmark{a} & $M_{\rm vir}$\tablefootmark{a} & $n_{\rm H_2}$\tablefootmark{a} & $X_{\rm NH_3}$\tablefootmark{a} \\
     & ($\arcsec$) &  ($\arcsec$) & (10$^3$ AU) & (10$^{-6}$ $M_{\odot}$) & ($M_{\odot}$) & (10$^{9}$ cm$^{-3}$) & (10$^{-9}$) \\
\hline
G12.22--0.12A  & 1.6 & 0.8 & 12.1 & 120.8 & 303 & 0.10 & 46 \\ 
G12.22--0.12B  & 1.6 & 0.8 & 12.1 & 48.3 & 187 & 0.06 & 30 \\ 
G12.22--0.12M  & $\sim$1.5 & $\le$0.5 & $\le$8.1 & 15.6 & 53 & 0.07 & 35 \\ 
G31.28+0.06   & 1.3 & 0.5 & 4.0 & 2.9 & 36 & 0.34 & 9 \\ 
G35.20--0.74A  & $\sim$1.2 & $\le$0.3 & $\le$0.6 & 0.05 & 2 & 0.01 & 3 \\ 
G35.20--0.74B  & $\sim$1.2 & $\le$0.3 & $\le$0.6 & 0.01 & 4 & 0.03 & $\sim$1 \\ 
G48.61+0.02   & 1.4 & 0.5 & 8.2 & 147.3 & 337 & 2.20 & 51 \\ 
G75.78+0.34   & $\sim$1.3 & $\le$0.3 & $\le$1.2 & 0.1 & 13 & 4.40 & 1 \\ 
\hline
\end{tabular}}
\par
\tablefoot{\tablefoottext{a}{When the ammonia cores are not spatially resolved, $\Theta_{\rm HP}$ is equal to the HPBWs of the
NH$_3$(2, 2) and (3, 3) maps, whereas we arbitrarily assume that HPBW/3 is 
an upper limit (used to derive the parameters listed in the table) of $\Theta_{\rm S}$ (see text).}}
  \end{table}