\begin{table}%t9
   \caption{\label{t:sensitivity2}Mean slopes of the variations in abundance difference
              and temperature difference between the components due
              to changes in the atmospheric parameters of the secondary.}
     \small%\centering
\par
       \begin{tabular}{lccc}
         \hline\hline
         \noalign{\smallskip}
            Parameter & Change    & $\Delta (\Delta$[Fe/H]$(A-B))$  &  $\Delta (\Delta T_{\rm eff}(A-B))$ \\
         \noalign{\smallskip}
         \hline
         \noalign{\smallskip}
 $\Delta T_{\rm eff}$  &  10 K        & $ 0.0058\pm0.0008$ & $ 10.2\pm1.4$ \\
$\Delta \log g$   &  0.01~dex    & $ 0.0005\pm0.0002$ & $ 3.64\pm0.22$ \\
$\Delta $ [A/H]   &  0.01~dex    & $ 0.0011\pm0.0006$ & $ 1.93\pm0.36$ \\
$\Delta \xi$      &  0.1~km~s$^{-1}$    & $ 0.0107\pm0.0033$ & $ 5.41\pm2.07$ \\
         \noalign{\smallskip}
         \hline
      \end{tabular}
\par
\end{table}