Fig. D.1.
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Joint spectral fitting of the Swift/XRT (2025 September 23 and 26) and NuSTAR (2025 September 24) observations. Top: Unfolded spectrum in units of keV2 (ph cm−2 s−1 keV−1) with the best-fit model tbabs*(cutoffpl+relxill+diskbb). Second: Unfolded spectrum in units of ph cm−2 s−1 keV−1. Third and bottom: Residuals for tbabs*(cutoffpl+relxill+diskbb) and tbabs*cutoffpl, respectively. The spectra are re-binned for display purposes.
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