\begin{table}%t3
%\centering
\par
\caption{Fitted model parameters for EPIC spectra of HD~159176. The upper part of the table concerns the {\tt wabs$_{\rm ISM}$*wabs$_{\rm WIND}$*(mekal + mekal)} model, whilst the bottom part summarizes the results for the {\tt wabs$_{\rm ISM}$*wabs$_{\rm WIND}$*(mekal + power)} model. The $N_{\rm H}$ given in the table refers to the circumstellar (i.e.\ wind) column assumed to be neutral. The interstellar column density is frozen at $0.17\times10^{22}$~cm$^{-2}$ for all models. The Norm parameter of the {\tt mekal} component is defined as $(10^{-14}/(4~\pi~D^2))\int{n_{\rm e}~n_{\rm H}~{\rm d}V}$, where $D$, $n_{\rm e}$ and $n_{\rm H}$ are respectively the distance to the source (in cm), and the electron and hydrogen densities (in cm$^{-3}$), whereas for the power law this parameter corresponds to the photon flux at 1 keV. The error bars represent the 1 $\sigma$ confidence interval.\label{fits}}
\begin{tabular}{ccccccc}
\hline
\hline
	& $N_{\rm H}$ & $kT^1$ & Norm$^1$ & $kT^2$ & Norm$^2$ & $\chi^2_\nu$ \\
	& (10$^{22}$ cm$^{-2}$) & (keV) & & (keV) & & d.o.f. \\
\hline
MOS1 & 0.41 & 0.22 & $2.04 \times10$$^{-2}$ & 1.05 & $1.51\times 10$$^{-3}$ & 2.19 \\
	& $\pm$0.03 & $\pm$0.04 & $\pm$$0.38 \times 10$$^{-2}$ & $\pm$0.02 & $\pm$$0.09\times 10$$^{-3}$ & 197 \\
\hline
MOS2 & 0.39 & 0.21 & $2.11\times 10$$^{-2}$ & 1.00 & $1.58\times10$$^{-3}$ & 2.65 \\
	& $\pm$0.03 & $\pm$0.04 & $\pm$$0.40\times 10$$^{-2}$ & $\pm$0.02 & $\pm$$0.09\times 10$$^{-3}$ & 198 \\
\hline
pn & 0.35 & 0.18 & $1.88\times 10$$^{-2}$ & 0.59 & $2.98\times 10$$^{-3}$ & 1.87 \\
	& $\pm$0.02 & $\pm$0.03 & $\pm$$0.26\times 10$$^{-2}$ & $\pm$0.01 & $\pm$$0.17\times 10$$^{-3}$ & 321 \\
\hline
\hline
	& $N_{\rm H}$ & $kT$ & Norm$^1$ & $\Gamma$ & Norm$^2$ & $\chi^2_\nu$ \\
	& (10$^{22}$ cm$^{-2}$) & (keV) & & & & d.o.f. \\
\hline
MOS1 & 0.26 & 0.30 & $4.69\times 10$$^{-3}$ & 4.01 & $1.87\times 10$$^{-3}$ & 1.65 \\
	& $\pm$0.02 & $\pm$0.01 & $\pm$$0.84\times 10$$^{-3}$ & $\pm$0.09 & $\pm$ $0.18\times10$$^{-3}$ & 197 \\
\hline
MOS2 & 0.24 & 0.29 & $5.08\times 10$$^{-3}$ & 3.80 & $1.69\times 10$$^{-3}$ & 1.99 \\
	& $\pm$0.02 & $\pm$0.01 & $\pm$$0.89\times 10$$^{-3}$ & $\pm$0.08 & $\pm$$0.16\times10$$^{-3}$ & 198 \\
\hline
pn & 0.28 & 0.28 & $6.72\times 10$$^{-3}$ & 4.09 & $1.67\times 10$$^{-3}$ & 1.70 \\
	& $\pm$0.01 & $\pm$0.01 & $\pm$$0.80\times 10$$^{-3}$ & $\pm$0.08 & $\pm$$0.14\times 10$$^{-3}$ & 321 \\
\hline
\end{tabular}
\end{table}