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Fig. 3.

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PSF radial profiles measured and extrapolated from our NTT (red lines) and NOT (blue lines) data. The dashed lines show the extrapolated power-law wings. The dot-dashed lines indicate the fractional cumulative flux outside a given distance from the center. The black vertical dashed line corresponds to the separation between the averaged core PSF and the bright star middle section at 36 for the NTT PSF. The NTT PSF is normalized to its maximum value, and the NOT PSF is normalized so that it has a total flux equal to the NTT PSF.

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