\begin{table}%t4
\caption{\label{tab:catalog}Overdensities in the GOODS-South field.} 
%%\centerline

{\begin{tabular}{lccccccccccccccc}
 \hline 
\hline\noalign{\smallskip} 
ID &Redshift & RA           & Dec     &  Members              &  Field & $M_{200}$     $b=2-1$&$r_{200} b=2-1$& Peak Overdensity    &  
Numb. &   Spectroscopic   &    $\sigma_{\rm v}$              & $r_{\rm vir}$       & $M_{\rm vir}$           \\     
   &         & (J2000)        & (J2000)   &                       &  &     ($M_\odot/10^{14}$)              & (Mpc)            & $\sigma$   &     of $z_{\rm spe}$                     &     position                &     $({\rm km}~{\rm s}^{-1})$
   & (Mpc)          & ( $M_\odot/10^{14}$)     \\  
\noalign{\smallskip}\hline\noalign{\smallskip}
$1$          &0.66  &    53.1623   &  $-27.7913$    &  19  & 6  & 0.15--0.3& 0.9--1.1 &$7 $ &6 & $0.665\pm0.001$&$446\pm180$  & 0.85 & 1.0   \\
$2^{a} $     &0.66  &    53.0630   &  $-27.8280$    &  50  & 17 & 0.2-0.4& 1.1--1.3 &$10 $  &  & & &                                         \\
$3  $        &0.69  &    53.1690   &  $-27.8747$    &  54  & 20 & 0.3--0.5& 1.1--1.4 &$6 $ &  & & &                                         \\
$4^{a,b,c}$  &0.71  &    53.0797   &  $-27.7920$    &  92  & 37 & 0.9--3.0& 1.7--2.4 &$10$  &36& $0.734\pm0.001$ &$634\pm107$  & 1.3  & 3.2  \\
$5  $        &0.96  &    53.0843   &  $-27.9020$    &  32  & 14 & *        &  *       &$6$  &  & & &                                         \\
$6^{c}$      &1.04  &    53.0570   &  $-27.7693$    &  57  & 31 & 0.5--1.1& 1.4--1.8 &$8 $ &  & & &                                           \\
$7$          &1.04  &    53.1577   &  $-27.7660$    &  60  & 26 & 0.4--0.8& 1.2--1.6 &$6 $ &  & & &                                           \\
$8^{b,d}$    &1.06  &    53.0697   &  $-27.8773$    &  38  & 18 & 0.2--0.5& 1.1--1.3 &$10$  &6 &$1.0974\pm 0.0015$  & $446\pm 143$ &0.8 & 0.8 \\
$9^e $       &1.61  &    53.1270   &  $-27.7140$    &  50  & 24 & 2.0--4.9& 2.1--2.9 &$7 $ &6 &$1.610\pm 0.001$  &$482\pm217$ &1.4 &1.46      \\
$10$         &2.23  &    53.0763   &  $-27.7060$    &  20  &  8 & 0.8--1.4& 1.5--1.9 &$6 $ &  & & &                                           \\
$11$         &2.28  &    53.1470   &  $-27.7087$    &  23  & 12 & 0.6--1.3& 1.5--1.8 &$10$  &  & & &                                           \\
$12$         &2.28  &    53.0970   &  $-27.7640$    &  19  & 7  & 0.6--1.6& 1.3--2.0 &$9 $ &  & & &                                           \\
 \hline
\end{tabular}}
\medskip
\par
$^a$  \cite{gilli2003};
$^b$  \cite{adami2005};
$^c$  \cite{trevese2006};
$^d$  \cite{diaz2007};
$^e$  \cite{castelllano2007}.
\\
{* We do not present $M_{200}$ and $r_{200}$
for structure 5 because it is located on the edge of the field and
it is very close to structure 8, see Fig.~\ref{fig:strutture}.}
\end{table}