\begin{table}%t3
  \caption{Total column densities, radial velocities, intrinsic line
    widths $b$, and origin of the detected H$_2$ towards each star in
    the sample.}\label{results}
\par
\small%\centerline
 {
\begin{tabular}{lccccccc}
\hline
\hline  
%&&&&&&& \\[-8pt]
Name        &  log $N$(H$_2$) $^{{(a)}}$             & \vrad\ (H$_2$) $^{{(b)}}$     &  {\it b}             & Origin     & Ref.     & Inclination          & Ref.  \\
            &                            &   (\kms)               &  (\kms)              & of H$_2$   &          & of the disk ({\degr}) $^{{(c)}}$&   \\
\hline
$\beta$ Pictoris& $\leq$17.41                &    --               &    --                &  --        & (1)      &  $\sim$0             & (6) \\
HD 135344  & $\leq$17                   &    --            &    --                &   --       & (1)      & 79 $\pm$ 2             & (7) \\
HD 100453  & $\leq$16                   &   --             &    --                &    --      & (1)      & $\sim$65             & (8) \\
HD 36112   & $\leq$17.85                &   ---             &   --                 &   --       & (1)      & 53--57                & (9) \\
HD 104237  & $\rm 18.68_{-0.61}^{+0.39}$     & $\rm 1.4_{-1.0}^{+0.9}$    & $\rm 5.3_{-0.7}^{+0.6}$  & CS         & (1)      & 78                   & (10) \\
HD 163296  & $\rm 18.16_{-0.40}^{+0.27}$     &   0 $\pm$ 2              & $\rm 2.2_{-0.7}^{+0.5}$  & CS         & (2), (1) & 60 $\pm$ 5             &  (11)  \\
NX Pup     &  $\leq$19.30               &    --               &   --                 &   --       &  (1)     &  ?                   &  \\
AB Aur     & $\rm 20.03_{-0.19}^{+0.15}$     & 2 $\pm$ 3               & $\rm 6.8_{-2.2}^{+2.8}$  & IS/CS?     & (1),(4)  & 55--63                & (13)  \\
HD 141569  & $\rm 20.32_{-0.22}^{+0.20}$     & 20                     & $\rm 5.3_{-0.5}^{+0.3}$  &  IS        &  (1)     & 51 $\pm$ 3             & (14) \\
HD 100546  & $\rm 16.46_{-0.14}^{+0.24}$     & 0 $\pm$ 2                & $\rm 3.4_{-0.5}^{+0.8}$  & CS         & (2), (1) & 51 $\pm$ 3             & (15)  \\
HD 109573  & $\leq$15.40                &  --             &    --                &   --       & (1)      & 20.5 $\pm$ 3           &  (12)    \\
HD 176386  & $\rm 20.80_{-0.26}^{+0.18}$     & $\sim$$-$7.0            &                      &  CS        & (1)      & $n$                    &  \\
HD 250550  & $\rm 19.26_{-0.40}^{+0.17}$     & $\rm -1.0_{-2.0}^{+1.7}$   & $\rm 5.6_{-0.8}^{+0.7}$  & CS         & (3)      & $n$                    &     \\
HD 85567   & $\rm 19.33_{-0.17}^{+0.20}$     & $\rm 4.5_{-0.2}^{+0.3}$    & $\rm 6.0_{-0.9}^{+0.7}$  & CS         & (1)      & $n$                    &    \\
HD 259431  & $\rm 20.64_{-0.19}^{+0.11}$     & $\rm 13.0_{-1.8}^{+2.2}$   & $\rm 4.5_{-0.5}^{+0.3}$  & CS         & (3)      & $n$                    &      \\
HD 38087   & $\rm 20.43_{-0.08}^{+0.15}$     & $\rm 2.36_{-2.1}^{+1.2 }$  & $\rm 3.7_{-0.2}^{+0.3}$  & CS         &  (1)     & $n$                    &       \\
HD 76534   & $\rm 20.64_{-0.16}^{+0.16}$     & $\rm 0.0_{-1.3}^{+0.3}$    & $\rm 5.0_{-0.3}^{+0.4}$  & CS         & (5)      & $n$                    &       \\
\hline
\end{tabular}}
\medskip
$^{{(a)}}$ Upper limits on the column densities have been obtained with $b=1$~\kms. \\
$^{{(b)}}$ Radial velocities are in the stars' rest  frames. \\
$^{{(c)}}$ The inclination angles for the disks are given with respect to the line of sight ($i=0$: edge-on). ``$n$'' indicates stars with no evidence of disk. \\
References in Col.~6 concern the results given in Cols.~2 to~5, and references in Col.~8 are for the inclination angles of the disks. References: (1)~this work; (2) \citet{LECAV03}; (3)
  \citet{JCB03}; (4) \citet{ROBERGE01}; (5) \citet{klr04}; (6)
  \citet{Smith84}; (7) \citet{Dent05}; (8) \citet{Dominik03}; (9)
  \citet{Eisner04}; (10) \citet{Grady04}; (11) \citet{GRADY00}; (12)~\citet{Augereau99}; (13) \citet{Eisner03}; (14)
  \citet{Weinberger99}; (15) \citet{Augereau01}.
\end{table}