Fig. 1.
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XMM-Newton EPIC-pn pattern-0 data−model residuals from the X-ray spectral fitting using the models described in Sect. 3.1. Left: Bright state observation XMM2 (2008). Right: Faint state observation XMM4 (2019). Significant improvement in the residuals can be seen in both of the multicomponent models, M2 and M3, compared to the single power-law model, M1.
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