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Fig. 14

image

Lack of correlation on the PSF FWHM of GJ 436 (AOR: 38807296) with the square root of the pixel noise parameter () on the left. For comparison, the same graph corresponding to a light curve from the same bandpass (AOR: 28894464) is displayed on the right. The mean FWHM is clearly proportional to the square root of the pixel noise parameter, as expected.

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