Figure 5.

(a) The Fourier transform of the residual phase from figure 3d. (b) The fraction of Fourier power at scales λ > λ′, for all λ′. The dotted lines show that, for our synthetic wave, 90% of the Fourier power resides at scales greater than λ₉₀ = 22.7 pixels. Figure from Tiscareno et al. [11].