Table 5: Spectral analysis of XMM-Newton data.
Model Parameters

A: mekal+pl+Gauss
$\chi^2/\nu$ = 220.05/163

kT (keV) $0.33 \pm 0.02$

Z $(Z_\odot)$ 1.0 (f)

$\Gamma$ $1.31 \pm 0.05$

Line: $\sigma_{E}$ ; E(keV); EW (keV) 0.0 (f); $6.42 \pm 0.05$ ; $0.75 \pm 0.25$

B: mekal+pl+Gauss+refl.
$\chi^2/\nu$ = 236.35/163

kT (keV) $0.32 \pm 0.02$

Z $(Z_\odot)$ 1.0 (f)

$\Gamma$ 1.9 (f)

R (= refl./dir.) $6 \pm 2$

Line: $\sigma_{E}$ ; E(keV); EW (keV) 0.0 (f); $6.42 \pm 0.05$ ; $0.75 \pm 0.25$

**Table 5:** Spectral analysis of *XMM-Newton* data.
Model	Parameters
A: mekal+pl+Gauss	$\chi^2/\nu$ = 220.05/163
kT (keV)	$0.33 \pm 0.02$
Z $(Z_\odot)$	1.0 (f)
$\Gamma$	$1.31 \pm 0.05$
Line: $\sigma_{E}$ ; E(keV); EW (keV)	0.0 (f); $6.42 \pm 0.05$ ; $0.75 \pm 0.25$
B: mekal+pl+Gauss+refl.	$\chi^2/\nu$ = 236.35/163
kT (keV)	$0.32 \pm 0.02$
Z $(Z_\odot)$	1.0 (f)
$\Gamma$	1.9 (f)
R (= refl./dir.)	$6 \pm 2$
Line: $\sigma_{E}$ ; E(keV); EW (keV)	0.0 (f); $6.42 \pm 0.05$ ; $0.75 \pm 0.25$

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