\begin{table}%t2
%%\centering

\par
\caption{Source subtraction thresholds $S(\lambda)$ and number of subtracted sources at different spatial resolutions. 
 }\label{tab2}
\begin{tabular}{c c c c c c c} 
\hline
\hline
Resolution  & Subtracted sources & $S$(24~$\mu$m) & $S$(70~$\mu$m) & $S$(160~$\mu$m) & $S$(20~cm) & $S$(3.6~cm) \\
arcsec & \# & $\mu$Jy/arcsec$^2$ & $\mu$Jy/arcsec$^2$ & $\mu$Jy/arcsec$^2$& $\mu$Jy/beam & $\mu$Jy/beam \\
\hline
18 & 40 & 460 & 2650 & -- & -- & --\\
51 & 15 & 115 & 1570 & 2865 & 7190 & --\\
84 & 11 & 85 & 900 &  2340& 8260& 5780\\
\hline
\end{tabular}
\end{table}