\begin{table}%t3
  \caption{Sensitivities to ultra-cool companions at 0\farcs25/0\farcs5 (3$\sigma$).
   Lower limits on the effective temperature based on \citet{Allar01}.}
  \label{limits}
  \begin{tabular}{lcccc}
    \hline
    \hline
        Target & $J$ &  $H$ & $M_J$ or $M_K$ & $T_{\rm eff}$ (K) \\
        \hline
   \Ms   & 20.3/21.0 & 19.3/21.0 & 17.4/18.1 & 700/610 \\ 
   \Mn   & 19.5/21.0 & 19.3/20.8 & 19.7/21.2 & 450/360 \\ 
   \Mt    & 18.6/20.2 & 17.5/19.1 & 16.9/18.5 & 760/710 \\
   \SD   & 19.0/19.7 & 18.4/19.8 & 16.5/17.2 & 800/730 \\ 
    \hline
    2MASS~J1626 &  \multicolumn{2}{c}{$K{\rm s}=15.6/16.9$}  & $14.4/15.7$ & 1300/1000 \\ 
    \IPMS & \multicolumn{2}{c}{$K{\rm s}=14.2/14.9$}  &  $14.9/15.6$ & 1130/1000 \\
    \hline
  \end{tabular}
\end{table}