\begin{table}%t3
\caption{Total and polarization intensity radio images restored with a~beam of 2\arcsec\ (see Figs.~\ref{a2255_b}--\ref{a2255_f}).}
\label{mappeIlow}
\small%\centerline
{
\begin{tabular}{c c c c c c c c c} 
\hline\hline
Source       & $\lambda$    &Beam      & $\sigma$($I$)$^{*}$  & $\sigma$($Q$)$^{*}$ & $\sigma$($U$)$^{*}$ & Peak brightness  &Flux density & Pol. flux \\
             & (cm)         &($''$)    & (mJy/beam)   & (mJy/beam)  & (mJy/beam)  & (mJy/beam)         & (mJy)       & (mJy)     \\ 
\hline
J1712.4+6401 &  3.6  & 2.0$\times$2.0   & 0.015 & 0.018 & 0.017  & 2.8      & 49.5      & 9.5  \\
$''$         &  6    & $''$             & 0.019 & 0.020 & 0.020  & 3.5      & 86.0      & 13.0  \\
J1713.3+6347 &  3.6  & $''$             & 0.014 & 0.016 & 0.016  & 2.3      & 37.0      & 8.0       \\ 
$''$         &  6    & $''$             & 0.018 & 0.020 & 0.020  & 2.4      & 64.5      & 10.5  \\
J1713.5+6402 &  3.6  & $''$             & 0.014 & 0.017 & 0.018  & 11.6     & 87.0      & 10.0   \\ 
$''$         &  6    & $''$             & 0.021 & 0.024 & 0.022  & 12.7     & 123.5     & 11.5     \\ 
J1715.1+6402 &  3.6  & $''$             & 0.014 & 0.017 & 0.015  & 3.5      & 26.0      &  2.0       \\ 
$''$         &  6    & $''$             & 0.016 & 0.020 & 0.021  & 3.5      & 43.5      &  2.0       \\ \hline
\end{tabular}}
\medskip
Column~1: source; Col.~2: observation wavelength; Col.~3: beam; Cols.~4--6: rms noise of the $I$, $Q$, $U$~images;  $^{*}$ Note that while the $I$~images have been obtained by averaging the two~IFs in the same band, the $Q$ and $U$~images have been obtained for each IF separately. Here we give the values of~$\sigma$($Q$) and~$\sigma$($U$) for the frequencies 8465~MHz and 4535~MHz at 3.6~cm and 6~cm respectively. Column~7: peak brightness; Col.~8: flux density; Col.~9: polarized flux density (for the frequencies 8465~MHz and 4535~MHz at 3.6~cm and 6~cm respectively.).
\end{table}