Fig. 1.
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Unfolded average spectrum (0.5–50 keV) of the persistent emission from SRGA J1444. Top panel: merged XMM-Newton RGS (blue points), EPIC-pn (green points) and NuSTAR FPMA and FPMB (black and red points, respectively) are shown as fitted to the semi-phenomenological best-fit model constant*tbabs (bbodyrad + diskbb + nthComp + gauSi + gauAu+ disklineAr + disklineFe)*edge*edge*edge (see Sect. 3.1). Bottom panel: residuals in units of χ with respect to the best-fit model but with the disklineFe component at 6.4 keV removed.
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