Upper panel: Unfolded MEG and HEG energy spectra of 4U 0142+61 fitted with an absorbed power‐law+blackbody model (solid line). The spectra have been coarsely binned for clarity. The contributions of the power‐law (dashed line) and blackbody (dotted line) components are also shown. The normalization difference between the MEG and the HEG is consistent with the uncertainty in the absolute flux calibration. Lower panel: Fractional residuals ([data‐model]/model) from the absorbed power‐law+blackbody model fit. The feature at ≈2 keV, marked with an arrow, is instrumental.