\begin{table}%t4
%\centering
\par
\caption{\label{tab_3dmod}Parameters of 3D models used in the analysis.} 
 \begin{tabular}[t]{lrlrr}
 \hline\hline
 \noalign{\smallskip}
Model       & $T_{\rm eff}$ & log $g$  &  [Fe/H] \\
\hline
d3t63g40mm30n01 & 6270    & 4.00     &  --3.0  \\
d3t65g45mm20n01 & 6530    & 4.50     &  --2.0  \\
d3t65g45mm30n01 & 6550    & 4.50     &  --3.0  \\
d3t59g40mm30n02 & 5850    & 4.00     &  --3.0  \\
\hline
\end{tabular}
\end{table}