Table 5: Fe K$\alpha $ line: fits of the 2001 observation, MECS data only. A stands for photoelectric absorption (fixed to the Galactic value), PEXRAV for the Compton reflection from cold material, COMPHA for the thermal Comptonisation model and G for Gaussian (line energies are rest frame). R, $E_{\rm c}$, $kT_{\rm e}/m_{\rm e}c^2$ and $\tau $ were fixed to their best fit values of Table 3.
Model $\Gamma $ $E_{\rm Fe}$ $\sigma_{\rm Fe}$ $EW_{\rm Fe}$ $\chi^2$(d.o.f.) Proba.
    keV eV eV    
A+PEXRAV $\rm 1.99^{+0.03} _{-0.02}$ - - - 92.81(78) 0.121
A+PEXRAV+G 1.99f $\rm 6.53^{+0.23} _{-0.19}$ <447.60 56.80 86.74(77) 0.210
A+COMPHA - - - - 95.53(79) 0.099
A+COMPHA+G - $\rm 6.53^{+0.16} _{-0.16}$ <314.82 71.90 86.25(77) 0.220
$\textstyle \parbox{12.5cm}{ $^f$\space Parameters fixed in the fit.}$


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