Table 5: Best-fit parameter values for the different two components models using the MOS and pn data all at once. The subscript 1 refers to the hot component (i.e. shocked ambient medium) and the subscript 2 to the cold component (i.e. shocked ejecta). The errors are in the range $\Delta \chi ^2 < 2.7$ (90% confidence level) on one parameter. Quantities in square brackets are held fixed at the given value.
Parameter Thermal model Nonthermal model
k T1 (keV) 2.7 (2.5-2.9) -
$\tau_1$ (108 s cm-3) 1.0 (<1.3) -
$\alpha$ - 0.66 (0.65-0.67)
$\nu_r$ (1017 Hz) - 2.1 (1.7-3.0)
Norm1 $5.6\times 10^{-4}$ (5.2-6.0) $[0.16 \ {\rm Jy}]$
k T2 (keV) 0.56 (0.54-0.58) 0.54 (0.52-0.57)
$\tau_2$ (1011 s cm-3) 3.3 (2.0-10.) 3.3 (>1.8)
Si (Ab$_\odot$) [1] [1]
S (Ab$_\odot$) 0.8 (0.4-1.2) 1.3 (0.9-1.7)
Fe (Ab$_\odot$) 0.10 (0.09-0.12) 0.11 (0.09-0.13)
Norm2 $1.5 \times 10^{-3}$ (1.3-1.8) $1.8 \times 10^{-3}$ (1.5-2.0)
$N_{{\rm H}}$ (1022 cm-2) 0.28 (0.25-0.30) 0.35 (0.33-0.37)
$\chi^2$ 701/601 d.o.f. 627/602 d.o.f.


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