\begin{table}%t4
%\centering
\par
\caption{Fitted model parameters for the EPIC-pn spectrum of HD~159176 for two different background estimation techniques. The adopted model is {\tt wabs$_{\rm ISM}$*wabs$_{\rm WIND}$*(mekal + mekal + power)}. The column densities given in the table refer to the circumstellar material. The interstellar column density is frozen at $0.17\times10^{22}$ cm$^{-2}$. The error bars represent the 1 $\sigma$ confidence interval.\label{fitpn}}
\begin{tabular}{ccccccccc}
\hline
\hline
	& $N_{\rm H}$ & $kT^1$ & Norm$^1$ & $kT^2$ & Norm$^2$ & $\Gamma$ & Norm$^3$ & $\chi^2_\nu$ \\
	& (10$^{22}$ cm$^{-2}$) & (keV) & & (keV) & & & & d.o.f. \\
\hline
Annulus & 0.20 & 0.20 & $4.39\times 10$$^{-3}$ & 0.58 & $1.79\times 10$$^{-3}$ & 3.50 & $7.35\times 10$$^{-4}$ & 1.11 \\
	& $\pm$0.02 & $\pm$0.01 & $\pm$$1.05\times 10$$^{-3}$ & $\pm$0.01 & $\pm$$0.19\times 10$$^{-3}$ & $\pm$0.12 & $\pm$$1.25\times 10$$^{-4}$ & 319 \\
\hline
Boxes & 0.18 & 0.21 & $3.66\times 10$$^{-3}$ & 0.59 & $1.72\times 10$$^{-3}$ & 3.43 & $8.12\times 10$$^{-4}$ & 1.09 \\
	& $\pm$0.01 & $\pm$0.01 & $\pm$$0.83\times 10$$^{-3}$ & $\pm$0.01 & $\pm$$0.18\times 10$$^{-3}$ & $\pm$0.10 & $\pm$$1.13\times 10$$^{-4}$ & 319 \\
\hline
\end{tabular}
\end{table}