\begin{table}%t2
\caption{\label{lines}Rest-frame equivalent widths and 1-$\sigma$ errors of the absorption lines detected in the TNG spectrum. }
%\centering
\par
\begin{tabular}{lcc}
 \hline\hline
Line &                     $EW $ &   $\Delta EW$ \\
 & (\AA) &     (\AA)\\
\hline
Ly-$\alpha$ ($z=2.61$) &                   0.8  &  0.3      \\
Ly-$\alpha$ ($z=2.58$) &                   2.8  &  0.3      \\
NV$~ \lambda ~1238, 1242$ &     0.4  &  0.3      \\
SiII$~ \lambda ~1260  $           &    1.3  &  0.3      \\
SiII$~ \lambda ~1304 $            &    0.9  &  0.3      \\
CII$~ \lambda ~1334 $             &     1.3 &  0.3 \\
SiIV$~ \lambda ~1393, 1402$  & 7.0      &  0.3\\
CIV$~ \lambda ~1548, 1550$   & 7.5       &  0.3\\
\hline
\end{tabular}
\end{table}