Spectral data and fits for XM3. Black, red, green, and blue denote pn0, pn14, MOS1, and MOS2, respectively. Data have been rebinned by a factor of 3 for clarity. In panel a, crosses denote the counts spectra, and the histograms denote the best-fitting M1 (“SXCOM+HXPL+UXCL”) model. The corresponding χ residuals are plotted in panel b. In this model, reflected emission is modeled with U XCLUMPY. In panel c, we plot the χ residuals for the best-fitting model wherein the soft X-ray excess and Compton reflected component are modeled as blurred, ionized reflection via RELXILL.