PDFs showing the 250 μm flux density, F_{250 μm}. From left to right, the plots show the PDFs of the homcyl, cyl, and cylsph models, all at (θ, ϕ) = (0°, 0°) and T_iso = 10 K. The black lines show the Rayleigh distributions fitted to the PDFs. The fitted mean values are marked with red lines. These plots illustrate how the flux density is concentrated towards the upper (homcyl) or lower range (cyl, cylsph) of the distributions.