\begin{table}%t2
%\centering
\par
\caption{List of the six line pairs used to derive the stellar temperature.}\label{tab:line_list}
\small \begin{tabular}{lrc}
\hline\hline
{$\lambda_1/\lambda_2$ }&{  LDR }&{ $\chi_1/\chi_2$ }\\
  (\AA)   &           &  (eV)\\\hline
6469.210/6456.380  & Fe{\sc{i}}/Fe{\sc{ii}}  & 4.84/3.90\\
6498.937/6516.050  & Fe{\sc{i}}/Fe{\sc{ii}}  & 0.96/2.89\\
6608.024/6597.557  & Fe{\sc{i}}/Fe{\sc{i}}   & 2.28/4.80\\
6608.024/6627.540  & Fe{\sc{i}}/Fe{\sc{i}}   & 2.28/4.55\\
6646.932/6627.540  & Fe{\sc{i}}/Fe{\sc{i}}   & 2.61/4.55\\
6646.932/6653.850  & Fe{\sc{i}}/Fe{\sc{i}}   & 2.61/4.15\\
\hline
\end{tabular}
\end{table}