\begin{table}%t3
\caption{\label{tabella_radiog}A665 radio galaxies used to study signal depolarization
  through intracluster medium.}                   
%\centerline
{\begin{tabular}{c c c c c c }     
\hline\hline       
Source &        RA     &      Dec    &   $r_\perp$   &  $FPOL$     &       $S_{1.4~{\rm GHz}}$       \\   
~      &     (J2000)   &    (J2000)  & (kpc) &  (\%)       &    ($mJy$)    \\
\hline
A  &  08:33:12 & 65:50:41   &2474 &      3.0 ~$\pm$~ 0.1   &    222~$\pm$~ 7  \\ 
B  &  08:30:53 & 65:36:60   &2429 &      2.7 ~$\pm$~ 0.2   &    122~$\pm$~ 4\\               
C  &  08:31:31 & 65:52:36   &712  &          $<$$0.6$      &    35~$\pm$~ 1\\               
D  &  08:29:51 & 65:51:53   &1293 &      1.2 ~$\pm$~ 0.2   &    41~$\pm$~ 1 \\             
E  &  08:30:25 & 65:50:42   &639  &          $<$$1.0$      &    12.8~$\pm$~  0.4\\              
F  &  08:32:02 & 65:50:38   &1166 &      5.8 ~$\pm$~ 0.9   &    6.4~$\pm$~ 0.2\\              
G  &  08:31:40 & 65:52:33   &855  &          $<$$3$        &    3.8~$\pm$~ 0.1\\              
H  &  08:28:34 & 66:02:17   &3449 &     13.8 ~$\pm$~ 1.0   &    27.2~$\pm$~ 0.8\\             
I  &  08:32:17 & 66:00:50   &2382 &      3.4 ~$\pm$~ 0.9   &    12.0~$\pm$~ 0.4\\              
J  &  08:30:42 & 65:58:09   &1456 &          $<$$3$        &    2.8~$\pm$~ 0.09\\             
K  &  08:26:57 & 65:42:31   &4745 &      6.1 ~$\pm$~ 1.8   &    19.9~$\pm$~ 0.6\\             
L  &  08:33:34 & 65:37:01   &3779 &       4.0~$\pm$~2.2    &    5.9~$\pm$~ 0.2\\             
M  &  08:30:04 & 66:13:06   &4259 &      3.2 ~$\pm$~ 1.9   &    5.7~$\pm$~ 0.2\\             
N  &  08:34:13 & 65:45:25   &3728 &     11.3 ~$\pm$~ 2.2   &    3.7~$\pm$~ 0.1\\            
O  &  08:33:11 & 65:58:02   &2810 &      7.0 ~$\pm$~ 1.6   &    2.8~$\pm$~ 0.09\\  
P  &  08:37:44 & 65:13:31   &10203&       5.2~$\pm$~1.5    &    1275~$\pm$~2\\
Q  &  08:34:14 & 66:35:52   &8991 &       9.4~$\pm$~2.7    &    341~$\pm$~2\\
R  &  08:30:34 & 65:51:54   &550  &          $<$$5$        &    1.05~$\pm$~0.04\\
S  &  08:31:52 & 65:54:53   &1277 &          $<$$6$        &    0.77~$\pm$~0.03\\
T  &  08:32:44 & 65:50:15   &1946 &          $<$$5$        &    1.77~$\pm$~0.06\\
U  &  08:28:51 & 65:54:36   &2512 &          $<$$6$        &    0.81~$\pm$~0.03\\
V  &  08:29:28 & 65:49:08   &1713 &          $<$$5$        &    1.19~$\pm$~0.04\\
W  &  08:32:26 & 65:34:28   &3313 &          $<$$6$        &    3.2~$\pm$~0.1\\
X  &  08:31:08 & 65:35:39   &2676 &          $<$$5$        &    2.31~$\pm$~0.07\\
Y  &  08:30:09 & 65:34:57   &2952 &       8.5~$\pm$~2.2    &    1.22~$\pm$~0.04\\
Z  &  08:31:16 & 65:47:30   &607  &          $<$$7$        &    0.42~$\pm$~0.02\\         
 \hline 
 \end{tabular}}
\tablefoot{Column~1: Radio galaxy labels; Cols.~2 to~3: Source's position; Col.~4: Distance from cluster center; Col.~5: Polarization Percentage; 
 Col.~6: Flux density.}\vspace*{2mm}     
\end{table}