\begin{table}%t5
\caption{Binary properties of confirmed or suspected metal-deficient barium stars. The
column labeled "Ba'' indicates whether detailed chemical analyses have
confirmed the Ba~nature of the star. The columns labeled  $\chi^2_{\mu_{\rm HIP} - \mu_{\rm Tyc}}$      and Prob($\chi^2 > \chi^2_{\mu_{\rm HIP} - \mu_{\rm Tyc}})$ provide the~$\chi^2$  (and its associated probability) involved in the comparison of Hipparcos and Tycho-2 proper motions
(see text for details). The column~"Bin.'' has been set to~"y'' if the first kind risk of rejecting the null hypothesis that the Tycho and Hipparcos proper motions are equal is smaller than~10\%. The column labeled IAD indicates whether the signature of an orbital motion is present in the Hipparcos Intermediate Astrometric Data, according
to the  various tests described in the text. The column labeled~$\sigma(Vr)$  provides the radial-velocity standard deviation, $\Delta t$ and~$N$ correspond to the time span and number of  observations, respectively. The columns labeled~$P$ and~"Ref'' list the orbital period (when available) and the reference for the radial velocity and/or orbital data. The
column "Binary'' gives the final binarity diagnostics.  }\label{Tab:SB}
%\centerline
{
\begin{tabular}{rrccrcccclllccc}
\hline \hline
 HIP  &  HD/DM  & Ba & Ref. & \multicolumn{1}{c}{$\varpi$ (mas)} &
 \multicolumn{3}{c}{$\mu_{\rm HIP} - \mu_{\rm Tyc}$} & IAD &
$\sigma(Vr)$ & 
$\Delta t$ & $N$ &
$P$  & Ref. & Binary  \\
\cline{6-8}
\noalign{\smallskip}
      &         &     &    &                 & $\chi^2_{\rm obs}$ & Prob($\chi^2 > \chi^2_{\rm obs})$ & Bin. & &    (km
s$^{-1}$) & (d) & & (d)\\
\noalign{\smallskip}
\hline
  4347 & 5424  & & & $0.22\pm1.42$ & 1.05 & 0.59 & n & n  & 2.32 & 3306 & 13 & 1881 & 6 & y \\
 11595 & 15589 & & & $2.03\pm1.21$ & 1.63 & 0.44 & n & n  & --    &  --   & --  &  --   &   & ? \\
 25161 & $-27^\circ$2233 & & & $0.89\pm1.35$ & 0.23 & 0.89 & n & n & --   & --  &  -- & --   &   & ? \\
 29740 &43~389  & & & $-1.25\pm1.00$  & 4.54 & 0.10 & y & y & 3.85 &3350& 24 & 1689 & 6 & y \\
 34795 &55~496  & y & 5 & $2.44\pm1.04$  & 0.02 & 0.99 & n & y & 0.73 & 5121 & 24&-- & 2 & y? \\
58596 &104~340  & y & 3 & $-0.97\pm1.09$ & 3.39 & 0.18 & n & n & 1.64 & 2587 &16 & -- & 2 & n  \\
 69834 &123~396 &   &   & $1.73\pm0.86$ & 1.98 & 0.27 & n & n & --  & --   & --  & --    &   & ? \\
 76605 &139~409 & y & 2 & $5.51\pm1.14$ & 4.98 & 0.08 & y & n & 0.66 & 1478 & 2 & --  & 2 & y?\\
 97874 &187~762 &   &   & $2.07\pm1.53$ & 9.00 & 0.01 & y & y & --  & --  &  -- &  --   &   & y \\ 
107478 &206~983 & y & 3 & $3.75\pm1.86$ & 2.94 & 0.23 & n & y & --  & --  &  -- &  --   &   & y?\\
\hline
\noalign{\smallskip}
\noalign{Additional stars (from refs. (1), (5) and (10))} \\[-9pt]
\hline
43042 &+$75^\circ 348$ &  y & 1 & $1.02\pm1.32$ & 0.12 & 0.94  & n & y & 4.64 & 1436 & 33 & 1042 & 11 & y  \\ 
55852 & +$4^\circ 2466$ &  y & 4,5 & $0.96\pm1.83$ & 0.43 & 0.81 & n & n & 3.38 & 6191 & 41 & 4592 & 2  & y \\
       & +$3^\circ 2688$ &  y & 5 & - & -  & -& -& - &0.45 & 986 & 7 & - & 2 & n? \\
      &CS 22942-019  & y & 10 & - & -  &- & -& - & 3.42 & 3274 & 15 & 2800 & 10 & y \\
      &CS 22948-027  & y & 10 & - & -  &- &- & - & 1.87 & 2560 & 13 & 505  & 10 & y \\
\hline
\end{tabular}}
\medskip
References to the table: (1) \citet{Zacs-2000}; (2) this work (3) \citet{Junqueira-2001};
(4) \citet{Burris-2000}; (5) \citet{Luck-Bond-91}; (6) \citet{Udry-1998:a}; (10) \citet{Preston-Sneden-01};   (11) \cite{Zacs-2005}. 
\end{table}