\begin{table}%T5  
\caption{\label{abun_table}The elemental abundances of the three-phase~{\it xabs} model of Obs.~2 fitted simultaneously to the \mbox{EPIC-pn}, RGS1 and RGS2~spectra.  }
%\small
%\centering
\par
\begin{tabular}{c c}
\hline \hline\noalign{\smallskip}
{Element} & {Abundance relative to H} \\ 
\hline
N & $1.5 \pm 0.1$\\
O & $1.4 \pm 0.1$\\
Fe & $1.8 \pm 0.1$\\
Other elements & 1 (f)\\[2pt]
\hline
\end{tabular}
\tablefoot {The abundances of the three phases~were coupled to each other in the fits. All the abundances are relative to the proto-solar model of \citet{Lod03}. The reference element is~H.}
\end{table}