\begin{table}%t4
\caption{\label{tab:uncer}Uncertainties in the adopted atmospheric parameters.}
%\centering
\par
\begin{tabular}{ccccc}
\hline\hline
Parameter     & $\sigma$   &  $\sigma$     & $\sigma$ & $\sigma$ \\
              &  method    &  $S/N$ \& cont. & sigma-clip. & total \\
\hline
$T_{\rm eff}$ (K)      & $\pm$55   &  $\pm$10   & $\pm$20 & $\pm$60 \\
log $g$       (dex)    & $\pm$0.20  & $\pm$0.07 & $\pm$0.15 & $\pm$0.26 \\
$\xi$   (km s$^{-1}$) & $\pm$0.05  & $\pm$0.01 & $\pm$0.06 & $\pm$0.08 \\
\hline
\end{tabular}
\end{table}