Fig. 5.
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Unfolded broadband spectrum (upper panel) and fit residuals (lower panel) extracted from NICER (black) + NuSTAR/FPMA (red) + NuSTAR/FPMB (orange) data over the 0.5–60 keV energy range. Panel (a) shows the fit without the inclusion of the absorption features (TBabs(nthComp + diskbb)). Panels (b) and (c) show the fit with Model 1B (TBabs × gabs × smedge(nthComp + diskbb)) and Model 2 (TBabs × gabs × smedge × simpl × diskbb), respectively. Panel (d) shows the fit with Model 3 (TBabs × gabs(diskbb + relxillCp)).
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