Table A.5.
Fitting parameters of luminosity versus temperature behaviour of the source during the XMM-Newton observation, with both the bbody model and the diskb+bbody model.
| Model | α | χ2 / D.o.F | χ2 / D.o.F for α = 4 | Inferred Radius |
|---|---|---|---|---|
| bbody - with quiescent | 4.18 ± 0.95 | 13.04 / 5 | 13.14 / 6 | N/A |
| bbody - without quiescent | 3.28 ± 0.63 | 5.98 / 4 | 7.50 / 5 | (1.30 ± 0.05)×106 km |
| diskbb+bbody | 3.55 ± 0.69 | 5.29 / 4 | 5.78 / 5 | (1.27 ± 0.04)×106 km |
Notes. For the bbody model, the quiescent state is clearly an under-luminous outlier (see Fig. 8), so we performed the fitting both including and excluding the quiescent state. Two fits were performed for each model: one to a power-law behaviour L ∝ Tα with α free and one when fixing α = 4 (constant-sized black body) and fitting only the proportionality factor, which is linked to the emission region radius.
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