\begin{table} %t3
%\centering
\par
\caption{Results on the photoelectric absorption towards \src\ (see
Table~\ref{tab:spec} for the continuum emission parameters) when fitting RGS+pn+MOS spectra. 
Quoted uncertainties are at 1$\sigma$ confidence.}\label{tab:edges}
\small
\begin{tabular}{llllll}
\hline  \hline 
Obs     & Edge & $\tau_{\rm edge}$          &  $N_{\rm Z}$    &  $N_{\rm H}$         & Ne/O \\
        &      &                            &  (10$^{17}$~\hcm) &  (10$^{21}$~\hcm)  &        \\
\noalign{\smallskip\hrule\smallskip}
I       & Ne K & $\rm 0.040 ^{+0.009} _{-0.010}$ & $1.1 \pm{0.3}$          & $1.3 \pm{0.3}$      &                   \\
        & O K  & $\rm 0.345 ^{+0.024} _{-0.029}$ & $\rm 6.1 ^{+0.4}_{-0.5}$    & $1.2 \pm{0.1}$      & $0.18 \pm{0.06}$  \\
        & Fe L & $\rm 0.084 ^{+0.013} _{-0.014}$ & $0.12 \pm{0.02}$  & $0.45 \pm{0.07}$  &   \\
\noalign{\smallskip\hrule\smallskip}
II      & Ne K & $\rm 0.055 ^{+0.009} _{-0.009}  $          & $1.5 \pm{0.3}$          & $1.7 \pm{0.3}$      &                   \\
        & O K  & $\rm 0.505 ^{+0.025} _{-0.025}  $          & $8.9 \pm{0.4}$          & $1.8 {\bf \pm{0.1}}$      & $0.17 \pm{0.03}$  \\
        & Fe L & $\rm 0.107 ^{+0.014} _{-0.014}  $          & $0.15 \pm{0.02}$        & $0.57 \pm{0.07}$    &                   \\
\hline
\end{tabular}
\end{table}