\begin{table}%t3
\caption{Spectral line wavelengths used for {\it EW} measurements.}
%\begin{center}
\par
\begin{tabular}{cc}
\hline\hline\noalign{\smallskip}
Wavelength (\AA) & Spectral lines\\
\hline
6393.4& Fe I\\
6436.7& Ca I\\
6462.4& Ca I/Fe I\\
6546.0& Fe I\\
6574.9& Fe I\\
6592.7& Fe I\\
6643.4& Ni I\\
6677.8& Fe I\\
6717.5& Ca I\\
\hline
\end{tabular}
%\end{center}
\par
\label{SpectralLines}
\end{table}