Fig. 5.
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Fit of the two simultaneous 2019 and 2020 XMM-Newton/pn and NuSTAR spectra with the TBNEW(GAL) × [COMPTT(WARM) + REFLKERR(HOT) + REFLKERR(REFL)] model. The fit parameters are reported in Table 3. Top panel: data-to-model ratio. Black: 2019 XMM-Newton/pn; dark grey: 2019 NuSTAR; blue: 2020 XMM-Newton/pn; light blue: 2020 NuSTAR. The Y-axis range is identical to that of Fig. 4 to allow for a direct comparison. Bottom panel: unfolded unabsorbed spectra (black: 2019; blue: 2020), where the separate contributions of the model components are displayed (solid and dotted curves for 2019 and 2020, respectively): Orange: soft Comptonisation (warm corona); green: hard Comptonisation (hot corona); magenta: disc reflection component.
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