\begin{table}%t1 
\caption{\label{tab:pb8-peakratios}Ratios between the peak heights: measured ratios, derived temperatures, and ratios from the final model (model B).}
%\centering
\par
\small
\begin{tabular}{llll}
\hline\hline
  & C~{\sc iv}/C~{\sc iii} 
& N~{\sc iv}/N~{\sc iii}  
& He~{\sc ii} /He~{\sc i} \\
& 5800/4650 & 7100/4634 & 4686/5876 \\
\hline
Observed & $1.4 \pm 0.3$  & $1.0 \pm 0.2$  & $2.3\pm 0.5$ \\
Derived $T_*$    & $50  \pm4~$kK & $54 \pm 2~$kK & $52\pm 3~$kK \\
Final model   & 1.6            & 0.9            & 2.7  \\        
\hline
\end{tabular}
\end{table}