Electron temperature (top-left) and theoretical spectrum (top-right) of the configuration ṁ_in = 1, μ_SAD ≪ 1, α_ν = 0.1, r_J = r_in. Each annulus is displayed as a blue dot; its associated spectrum is shown in blue dashed lines and the total disk spectrum with a black solid line. The bottom panel shows final faked and fitted data after the addition of the hard power-law tail; black for PCA and red for HEXTE. Dashed lines show the best fit obtained with; see Sect. 3.2 for details.