\begin{table}%t2
\caption{\label{tab:stellarlines}Stellar photospheric absorption lines and emission lines.}          %\centering
 \small
\begin{tabular}{l c l c c c  cc}     
\hline\hline \noalign{\smallskip}       
Ion & $\lambda_{\rm lab}$\tablefootmark{a} & Origin & $z_{\rm stars}$\tablefootmark{b} & $z_{\rm em}$\tablefootmark{c} & \multicolumn{1}{c}{$\Delta\upsilon$\tablefootmark{d}} & \multicolumn{1}{c}{$W_0$\tablefootmark{e}} & \multicolumn{1}{c}{$\sigma (W_0)$\tablefootmark{e}} \\
    & (\AA)           	   	    &        &                           &                        & \multicolumn{1}{c}{(km~s$^{-1}$)}                & \multicolumn{1}{c}{(\AA)}           & \multicolumn{1}{c}{(\AA)} \\
\hline
\ion{Si}{iii}    & 1294.543 & stars		  & 2.7349 &        & $-165$ to $+105$ &  0.13           & 0.02 \\
\ion{C}{iii}     & 1296.330 & stars		  & 2.7349 &        & $-165$ to $+195$ &  0.16\tablefootmark{f} & 0.02\tablefootmark{f} \\
\ion{Si}{iii}    & 1296.726 & stars		  & 2.7348 &        & $-165$ to $+195$ &  0.16\tablefootmark{f} & 0.02\tablefootmark{f} \\
\ion{C}{ii}      & 1323.929 & stars		  & 2.7348 &        & $-165$ to $+195$ &  0.21\tablefootmark{g} & 0.03\tablefootmark{g} \\
\ion{N}{iii}     & 1324.316 & stars		  & 2.7345 &        & $-165$ to $+195$ &  0.21\tablefootmark{g} & 0.03\tablefootmark{g} \\
\ion{Si}{ii}\tablefootmark{*} & 1533.431 & recombination	  &        & 2.7352 & $~-95$ to $+185$ & --0.20           & 0.02 \\   
\ion{N}{iv}      & 1718.551 & stars		  & 2.7347 &        & $-210$ to $+165$ &  0.57           & 0.06 \\
$[$\ion{C}{iii}] & 1906.683 & \ion{H}{ii} regions &        & 2.7348 & $-185$ to $+165$ & --0.35           & 0.04 \\   
\ion{C}{iii}]    & 1908.734 & \ion{H}{ii} regions &        & 2.7352 & $-165$ to $+185$ & --0.26           & 0.03	  
\\
\hline                  
\end{tabular}
\tablefoot {\tablefoottext{a}{Vacuum wavelengths;}
\tablefoottext{b}{vacuum heliocentric and values measured from the centroid wavelength of the photospheric absorption lines;}
\tablefoottext{c}{vacuum heliocentric and values measured from the Gaussian fits to the emission lines;}
\tablefoottext{d}{velocity range for equivalent width measurements relative to $z_{\rm sys} = 2.7350$;}
\tablefoottext{e}{rest-frame equivalent width and $1\sigma$~error;}
\tablefoottext{f}{this value refers to the blend of lines \ion{C}{iii}~$\lambda$1296.330 and \ion{Si}{iii}~$\lambda$1296.726;}
\tablefoottext{g}{this value refers to the blend of lines \ion{C}{ii}~$\lambda$1323.929 and \ion{N}{iii}~$\lambda$1324.316.}}
\end{table}