Table 4: Time resolved spectral results for observation E. The table gives the parameters of a blackbody component added to a fixed component with $N_{\rm H}=2.6\times 10^{22}$  $\rm cm^{-2}$, $\Gamma =2$, $k_{\rm B} T=0.4$ keV, and $R_{\rm bb}=7$ km (see Sect. 6 for details). Errors are given at 1$\sigma $.

Time interval		 $k_{\rm B} T$ (keV) $R_{\rm bb}$a (km) $\chi^{2}_{\rm r}$ (d.o.f.)
I $\rm 1.23^{+0.02}_{-0.03}$ $1.8\pm0.1$ 1.03 (69)
  1.1 (fixed) $\rm 2.17^{+0.03}_{-0.02}$ 1.35 (70)
  $1.29\pm0.01$ 1.6 (fixed) 1.09 (70)
II $\rm 1.15^{+0.03}_{-0.02}$ $1.6\pm0.1$ 1.21 (74)
  1.1 (fixed) $\rm 1.77^{+0.02}_{-0.03}$ 1.24 (75)
  $1.16\pm0.01$ 1.6 (fixed) 1.20 (75)
III $1.16\pm0.04$ $1.4\pm0.1$ 0.98 (64)
  1.1 (fixed) $\rm 1.56^{+0.02}_{-0.03}$ 1.01 (65)
  $1.09\pm0.01$ 1.6 (fixed) 1.04 (65)
IV $1.10\pm0.05$ $\rm 1.5^{+0.2}_{-0.1}$ 1.31 (45)
  1.1 (fixed) $1.50\pm0.03$ 1.28 (46)
  $1.07\pm0.01$ 1.6 (fixed) 1.29 (46)
V $0.94\pm0.07$ $\rm 1.5^{+0.3}_{-0.2}$ 1.25 (29)
  1.1 (fixed) $1.09\pm0.04$ 1.35 (30)
  $\rm0.92^{+0.01}_{-0.02}$ 1.6 (fixed) 1.21 (30)

a Radius at infinity assuming a distance of 15 kpc.

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