Pixel-to-pixel variations of r₅₀₀ around N   44, for the “AC model”. This relation includes only the pixels of the window centered around N   44 and displayed in Fig. 18. The spatial resolution is R4. The two top panels show the pixel density number correlations (colors; scale indentical to Fig. 13). The error bars represent the stacked trends in different bins. The central positions and the error bars are the median of the pixel distribution. They account for the scattering of the relation, but not for the error on individual pixels. On the contrary, the two bottom panels show the same trends, but the ellipses are the median error bars on individual pixels (dark: 50%; light: 90%). The excess is significant when looking at resolved scales. The yellow dashed line shows the zero value (no excess).