\begin{table}%t1
\caption{\label{table:ewlines}  List of features identified in the spectra (detections $\gtrsim$3-$\sigma$) along with their rest-frame equivalent widths.}
%\centering
\par
\begin{tabular}{c c c c}        
\hline\hline\noalign{\smallskip}                 
{$\lambda_{\rm{obs}}$}  & {Feature}                    & {$z$} & {$EW_{\rm{rest}}$}            \\    
{\scriptsize {\rm (\AA)}} & {\scriptsize {\rm (\AA)} }  &          & {\scriptsize {\rm (\AA)} }   \\  \hline\hline  
\multicolumn{4}{c}{Host galaxy at $z=3.37$}\\
\hline \noalign{\smallskip} 
5695.71	& \ion{O}{i}$\lambda$1302.17   & 3.37402	&  0.36~$\pm$~0.11\\		
5705.96	& \ion{Si}{ii}$\lambda$1304.37 &	3.37450	&  0.58~$\pm$~0.12\\	
                                               & \ion{C}{ii}$\lambda$1334.53  &  & \\
5839.99	& \ion{C}{ii*}$\lambda$1335.66  & 3.37413 &   0.88~$\pm$~0.12 \\
                                               & \ion{C}{ii*}$\lambda$1335.71  &  & \\
6096.13  & \ion{Si}{iv}$\lambda$1393.75  & 3.37389    & 1.14~$\pm$~0.13  \\
6135.08  & \ion{Si}{iv}$\lambda$1402.77  & 3.37354    & 1.03~$\pm$~0.10  \\
6678.24  & \ion{Si}{ii}$\lambda$1526.71    &  3.37428   &  0.95~$\pm$~0.08 \\
6770.31  & \ion{C}{iv}$\lambda$1548.19   &  3.37303  & 0.91~$\pm$~0.07  \\
6781.67  & \ion{C}{iv}$\lambda$1550.77   &  3.37310   & 0.89~$\pm$~0.06  \\
7035.95  & \ion{Fe}{ii}$\lambda$1608.45   &  3.37437 & 0.62~$\pm$~0.06  \\
7308.47  & \ion{Al}{ii}$\lambda$1670.79    & 3.37427  & 1.29~$\pm$~0.06  \\
8111.69  & \ion{Al}{iii}$\lambda$1854.72   &  3.37355  & 0.71~$\pm$~0.04 \\
8146.86  & \ion{Al}{iii}$\lambda$1862.79   &  3.37347  & 0.56~$\pm$~0.05  \\
9019.61  &\ion{Cr}{ii}$\lambda$2062.23    & 3.37371   & 0.14~$\pm$~0.02\\
10~385.9  & \ion{Fe}{ii}$\lambda$2374.46   & 3.37401 &  1.12~$\pm$~0.10   \\
10~420.9  & \ion{Fe}{ii}$\lambda$2382.77   & 3.37348  & 1.11~$\pm$~0.17  \\
11~312.1  &\ion{Fe}{ii}$\lambda$2586.65    & 3.37326  & 1.21~$\pm$~0.49\\
11~347.5  & \ion{Mn}{ii}$\lambda$2594.74  & 3.37327  & 1.04~$\pm$~0.14  \\
11~372.2  & \ion{Fe}{ii}$\lambda$2600.17   & 3.37363  & 1.29~$\pm$~0.11 \\
12~233.7  & \ion{Mg}{ii}$\lambda$2796.35  & 3.37486  & 1.94~$\pm$~0.15  \\
12~267.9  & \ion{Mg}{ii}$\lambda$2803.53  & 3.37588  & 1.90~$\pm$~0.13  \\
12~476.5  & \ion{Mg}{i}$\lambda$2852.96   & 3.37317 & 0.51~$\pm$~0.05  \\
17~207.2	& \ion{Ca}{ii}$\lambda$3934.78 & 3.37311  & 1.21~$\pm$~0.06 \\
17~359.6  & \ion{Ca}{ii}$\lambda$3969.59 & 3.37314  & 0.45~$\pm$~0.04 \\
\hline
\multicolumn{4}{c}{Intervening system at $z= 1.96$}\\
\hline \noalign{\smallskip}
6937.93  & \ion{Fe}{ii}$\lambda$2344.21  & 1.95960  & 0.15~$\pm$~0.04  \\
7052.26  & \ion{Fe}{ii}$\lambda$2382.77  & 1.95969  & 0.18~$\pm$~0.04  \\
7695.64  & \ion{Fe}{ii}$\lambda$2600.17  & 1.95966  & 0.31~$\pm$~0.04  \\
8276.48  & \ion{Mg}{ii}$\lambda$2796.35 & 1.95974  & 0.50~$\pm$~0.03  \\
8297.48  & \ion{Mg}{ii}$\lambda$2803.53 & 1.95965 & 0.59~$\pm$~0.05  \\ 
\hline
\multicolumn{4}{c}{Intervening system at $z= 1.80$}\\
\hline\noalign{\smallskip}
6673.45  & \ion{Fe}{ii}$\lambda$2382.77 & 1.80072    & 0.34~$\pm$~0.05  \\
7240.68  & \ion{Fe}{ii}$\lambda$2586.65 & 1.79925    & 0.48~$\pm$~0.06  \\
7280.21  & \ion{Fe}{ii}$\lambda$2600.17 & 1.79989 & 0.67~$\pm$~0.07  \\
7830.87  & \ion{Mg}{ii}$\lambda$2796.35 & 1.80039  & 1.35~$\pm$~0.10  \\
7849.07  & \ion{Mg}{ii}$\lambda$2803.53 & 1.79970 & 1.31~$\pm$~0.08  \\
7987.58  & \ion{Mg}{i}$\lambda$2852.96 & 1.79974 & 0.48~$\pm$~0.08 \\
\hline
\end{tabular}\vspace*{-2mm}
\end{table}