\begin{table}%t1
\caption{\label{physprop}Summary of the physical quantities derived from the optical spectral features of \obj.}
%\centering
\par
\begin{tabular}{l l l} 
\hline\hline \noalign{\smallskip}
Quantity & Value & Comment\\  
\hline 
$z$ (\lya\ peak)     & 5.563 & no abs. correction\\ 
$L$(\lya)         & 3.8 $\pm$ $0.3 \times 10^{43}$ erg~s$^{-1}$\\
${EW}_{0}$(\lya)   & 59$^{+195}_{-29}$~\AA~(restframe) & 89~\AA\ with Ctm$_{\rm phot}$\\
$z$ (\ion{N}{iv}])      & 5.553 (1486.5~\AA) & high-density limit\\
$L$(\ion{N}{iv}])       & 1.3$^{+0.3}_{-0.4}  \times 10^{43}$ erg~s$^{-1}$ &\\
${EW}_{0}$(\ion{N}{iv}])& 22$^{+64}_{-10} $~\AA~(restframe) & 33~\AA\ with Ctm$_{\rm phot}$\\
$L$(\ion{Si}{iv})       & ${\leqslant}0.11\pm0.07 \times10^{43}$ erg~s$^{-1}$ &(1393.8, 1402.8~\AA)\\
$L$(\ion{N}{v})       & ${\leqslant}0.11\pm0.06 \times10^{43}$ erg~s$^{-1}$ &(1238.8, 1242.8~\AA)\\
\hline 
\end{tabular}
\tablefoot {Equivalent width values are also given using the continuum level derived from the photometry~(Ctm$_{\rm phot}$), taken from \citet{van09b}.}
\end{table}