\begin{table}%t4
\caption{\label{tab:radiopol}Total and polarization intensity radio images at 1425~MHz.}
\par
\small%\centerline
 {
\begin{tabular}{c  c c c  c} 
\hline\hline 
Source name & $\theta$ & $\sigma_I$ & $\sigma_{Q,U}$ & Fig. \\ 
           & arcsec & \scriptsize(mJy/beam) & \scriptsize(mJy/beam)&\\ 
\hline 
Abell 2345-1 & 23 $\times$ 16 & 0.05 & 0.02 & \ref{fig:A2345_pol}, right panel\\ 
Abell 2345-2 & 23 $\times$ 16 & 0.07 & 0.02 & \ref{fig:A2345_pol}, left panel\\ 
Abell 1240-1 & 18 $\times$ 17 & 0.04 & 0.02 &\ref{fig:A1240pol}, top panel\\ 
Abell 1240-2 & 18 $\times$ 17 & 0.04 & 0.01 &\ref{fig:A1240pol}, bottom panel \\ 
\hline
\end{tabular}}
\medskip
Column~1: source name; Col. 2: restoring beam; Col.~4: rms noise of the $I$~image; Col.~5: rms noise of the $Q$ and $U$~images; Col.~6: figure of merit.
\end{table}