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Fig. 15

image

Left: period-folded photometric measurements obtained by Spitzer IRAC/channel 2 (centered in 4.5 μm) near the 28 occultations of planets TRAPPIST-1b, corrected for the measured TTVs. Coloured dots show the unbinned measurements; open circles depict 20 min-binned measurements for visual clarity and solid gray line is simply an horizontal line centered in 1. Right: similarly but for 9 occultations of TRAPPIST-1c.

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