Fig. 1.
Top-left: simulated X-IFU spectrum for a black hole spin parameter of 0.65 for a Rf = 2, AFe = 2 and logξ = 2 with an inset around the FeK energy band. The source flux corresponds to a 1 mCrab source, and the integration time is set to 100 ks. Top-right: zoom of the spectrum below 2 keV. The imprint of the absorbers on the various broadband emission components is shown in the subsequent panels: Middle-left: power law. Middle-right: power law plus relativistic reflection component. Bottom-left: relativistic reflection component. Bottom-right: cold reflection component from distant material. The different components are shown with and without the absorbers. Bottom lower left panel: multiple bumpy features below 2 keV due to ionized reflection. These are key in constraining the black hole spin.
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