Broadband spectra of the whole NGC 6240 galaxy, best-fit model (upper panel), and residuals (lower panel). The NuSTAR (green is FPMA, red is FPMB), XMM-Newton (blue is PN, magenta is MOS1+MOS2), and Chandra (orange) spectra unfolded with the instrument responses (for single XMM-Newton and Chandra spectra see Figs. 5 and 4, respectively) are plotted in the upper panel. The total model A is superimposed. The model’s single continuum components are also shown: the primary continuum (black solid line); the reflection continuum (black dashed line); the FeK_α, FeK_β, and nickel lines (black dotted lines); and the three thermal components (black dash-dotted lines). The lower panel shows the data/best-fit model ratios.