Asymmetric surface brightness (10 μm; upper row), and corresponding flux per beam relative to the planet flux F_p (lower row), following the format of Fig. 6. The inner regions are saturated above the ring maximum, and all maps are shown within a spatial scale of ∼2 a_p. The asymmetric surface brightness maps here follow the approach of Fig. 11 in Defrère et al. (2010). The area within the IWA is masked in the flux per beam maps, assuming d = 10 pc and B = 100 m. For reference, the beam FWHM (λ/B ≈ 0.2 au) is about twice the diameter of the IWA mask.