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Fig. 2

Logarithmically scaled model images (top row) at 7.5, 8.5, 9.5, 10.5, 11.5 and 12.5 μm and their corresponding fast Fourier transforms (bottom row). Each image is 0.52′′ in width corresponding to the interferometric field of view. The colour bar applies to both sets of images and represents the number of counts.
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