Luminosities of the X-ray, UV, and optical lines fitted with the LOC models. Top: best-fitting two-component LOC model (solid blue line; see Sect. 3.3.5 for details). The individual model components are also given: with a dotted blue line there is the component with γ fixed to −1 and the dashed blue line represents the component with γ considered as a free parameter. Bottom: corresponding fit residuals in units of the uncertainty σ of the line-luminosity measurements. The baseline model (with the radial distribution power-law index fixed to γ = −1; see Sect. 3.3.1 and Fig. 4) and the corresponding residuals (red) are displayed for reference. The data are displayed as in Fig. 4.