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Fig. 1

image

Incident scattered (left) and atmospheric emitted (right) light image array of the L-packet luminosity fractions fx,y(λ,α) (0, 1) escaping from the HD 189733b simulation. These images are produced by the next event estimator method at 1.0 μm for a viewing angle/phase of α = 60° (eastern dayside). The sharp transition from blue to black at pixel numbers x = 120150 is the eastern terminator in the scattered light image, including a “twilight” effect where packets scatter past the terminator line. The effect of the grid structure on the images is more apparent in the emitted light, since packets are initialised from within the cell volumes.

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