Convolution of the finite power-law models (with an outer edge at Θ = 64″). The spherical (dashed curves) and cylindrical (solid curves) models 𝒫_{A|B|C|D} (Fig. 1) were convolved with two types of kernels (thin dotted curves) of the half maximum sizes of {4, 32, 256}″. Shown are the results for the pure Gaussian kernels O_j (top) and power-law kernels 𝒦_j (bottom). The dashed horizontal lines indicate the half maximum level.