\begin{table}%t3
%\centering
\par
\caption{\label{table3}Intensities of the observed lines and of those simulated by Cloudy corresponding to the best-fit and normalized to the {O~\textsc{viii}} Ly-$\alpha$ flux (see text and Fig.~\ref{fig4} for more details).}
\par
\small
\begin{tabular}{llcc}
\hline\hline
Line ID & $\lambda_{\rm exp} ({\rm {\AA}})$& Observed ratio & Cloudy predicted ratio \\
\hline
{Ne~\textsc{x}} Ly-$\alpha$   ~&$12.134$~&$0.2_{\rm -0.2}^{+0.2}$~&$ 0.2$\\
{Ne~\textsc{ix}} ($r$)          ~&$13.447$~&$ \la $$0.1$~&$ 0.1$ \\
{Ne~\textsc{ix}} ($i$)          ~&$13.550$~&$ \la $$0.1$~&$0.2$ \\
{Ne~\textsc{ix}} ($f$)          ~&$13.700$~&$ 0.7_{\rm -     0.2}^{+     0.2}$~&$0.6$ \\
{Fe~\textsc{xvii}} 3s-2p      ~&$17.073$~&$ 0.5_{\rm -0.2}^{+0.2}$~& -- \\
{O~\textsc{viii}} Ly-$\alpha$ ~&$18.969$~&$ 1.0_{\rm -0.2}^{+0.2}$~&$1.0$ \\
{O~\textsc{vii}} ($r$)          ~&$21.600$~&$ \la  $$0.1$~&$0.3$ \\
{O~\textsc{vii}} ($i$)          ~&$21.790$~&$ 1.0_{\rm -     0.2}^{+     0.2}$~&$0.6$ \\
{O~\textsc{vii}} ($f$)          ~&$22.101$~&$ 2.2_{\rm -0.3}^{+0.3}$~&$2.5$ \\
{N~\textsc{vii}} Ly-$\alpha$  ~&$24.781$~&$ 0.3_{\rm -0.1}^{+0.1}$~&$0.2$ \\
{N~\textsc{vi}} ($r$)           ~&$28.787$~&$ \la $$0.13$~&$0.01$ \\
{N~\textsc{vi}} ($i$)           ~&$29.083$~&$ 0.1_{\rm -    0.1}^{+    0.1}$~&$0.01$ \\
{N~\textsc{vi}} ($f$)           ~&$29.534$~&$ 0.5_{\rm -     0.1}^{+    0.1}$~&$0.1$ \\
{C~\textsc{vi}} Ly-$\alpha$   ~&$33.736$~&$ 0.5_{\rm -0.2}^{+0.2}$~&$0.7$ \\
\hline
\end{tabular} 
\end{table}