\begin{table}%t2 \caption {\label{tbl:EW_FeKa}Parameters of the emission lines of the Fe~K$\alpha$ complex from a bremsstrahlung + 3 Gaussian lines model.} %\centerline { \begin{tabular}{l c c c c c c c c c c c c} \hline \hline\\[-2.2ex] & $\lambda_{\rm C}$ & {\it EW} & Flux\tablefootmark{a} \\ & (\AA) & (m\AA) & ($\times$~10$^{-5}$) \\ \hline\\[-2.2ex] all observation: \\ Fe~K (fluorescence) & 1.9312[60] & 10[2] & $\rm 4.4^{+0.8}_{-1.0}$ \\ [0.2ex] Fe~XXV & 1.8533[55] & 12[3] & $\rm 5.3^{+1.4}_{-0.9}$ \\ [0.2ex] Fe~XXVI Ly$\alpha$ & 1.7737[51] & 7[2] & $\rm 3.1^{+0.7}_{-0.5}$ \\ [0.2ex] \hline\\[-2.2ex] low state: \\ Fe~K (fluorescence) & 1.937[12] & 13[5] & $\rm 4.1^{+1.0}_{-1.7}$ \\ [0.2ex] Fe~XXV & 1.867[17] & 12[4] & $\rm 4.1^{+1.5}_{-1.2}$ \\ [0.2ex] Fe~XXVI Ly$\alpha$ & 1.781[10] & 7[3] & $\rm 2.2^{+0.9}_{-0.8}$ \\ [0.2ex] \hline\\[-2.2ex] high state: \\ Fe~K (fluorescence) & 1.9282[60] & 10[3] & $\rm 5.6^{+1.0}_{-1.6}$ \\ [0.2ex] Fe~XXV & 1.8478[83] & 13[4] & $\rm 7.6^{+2.2}_{-1.4}$ \\ [0.2ex] Fe~XXVI Ly$\alpha$ & 1.7737[76] & 8[2] & $\rm 4.4^{+1.3}_{-0.9}$ \\ [0.2ex] \hline \end{tabular} } \par \tablefoot {Quoted errors are at~90\% confidence level. The temperature of the bremsstrahlung model at 1.2--4.1~\AA\ (3--10~keV) converges to $kT = 13.36$(+0.21/--0.25)~keV.\\ \tablefoottext{a} {Total flux in line, in units of photons~cm$^{-2}$~s$^{-1}$. }} \end{table}