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Fig. 11

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The upper panels show the best-fit temperatures (asterisks) and statistical 1σ uncertainties (boxes) in the soft band with the XMM-Newton instruments pn/MOS1 (left panel), pn/MOS2 (middle panel) and MOS1/MOS2 (right panel). The lower panels show the relative temperature difference fT (=ΔT/⟨ T ⟩, diamonds) and its 1σ uncertainty for MOS1-pn (left panel), MOS2-pn (middle panel) and MOS2-MOS1 (right panel). The dotted and dashed lines show the weighted mean of fT  ±  the error of the mean.

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