\begin{table}%t4
\caption{\label{table:int2}List of column densities measured for the transitions identified for the 3 different velocity components in the  $z = 1.80$ intervening system.}             % title of Table   
%\centering
\par
\begin{tabular}{c c c c c c c c}   
\hline\hline \noalign{\smallskip}                
\multicolumn{2}{c}{{}}  & \multicolumn{2}{c}{{Component I}}& \multicolumn{2}{c}{{Component II}} & \multicolumn{2}{c}{{Component III}} \\    % table heading 
\hline
    {Ion}   &     {Transitions}           & {Velocity} &{log $N$ }  & {Velocity }&{log $N$ }  &{Velocity }&{log $N$ }  \\ 
       &\scriptsize \rm{ (\AA)}		&\scriptsize {($\rm {km~s^{-1}}$)}&\scriptsize {($\rm {cm^{-2}}$)}&\scriptsize {($\rm {km~s^{-1}}$)}&\scriptsize {($\rm {cm^{-2}}$)}&\scriptsize {($\rm {km~s^{-1}}$)}&\scriptsize {($\rm {cm^{-2}}$)}\\
\hline\noalign{\smallskip}    
\ion{Fe}{ii}  & 2382, 2586, 2600 & +85 & 13.3~$\pm$~0.1 & 0 & 15.0~$\pm$~0.2 & --286 & 14.0~$\pm$~0.1 \\ %
\ion{Mg}{ii} & 2796, 2803 & +85 &13.4~$\pm$~0.1 & 0 &$>$$15.3$& --286 &$>$$14.7$ \\ %
\ion{Mg}{i}  & 2853           & +85 & 12.3~$\pm$~0.2 & 0 & $12.0 \pm 0.2$ & --286 & 12.5~$\pm$~0.2\\ %
\hline
\end{tabular}\vspace*{2mm}
\end{table}