Radial projected profiles for the K-band surface brightness (a) and the number densities (b and c). Bars indicate formal statistical errors (vertical) and binning intervals (horizontal). The curves in panel a are for the model parameters from Table 3. Panel b: the Hubble model is for (R_c, β, Σ_b) = (10′,0.9, 0), the dotted curve includes a background fraction f_b = 0.15. The dashed curve is a double-King profile with (R_c, 1, β₁, R_c, 2, β₂) = (3′,1, 10′,0.58) and Σ_b = 0. Panel c: the symbols are interconnected by dashed lines just to guide the eye.