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Fig. 4

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Contrast curves obtained with ADI (top panel), RDI (middle panel) and without PSF subtraction (bottom panel) without (straight lines) and with optimal filtering (dashed lines) for mean background subtraction (blue) and PCA background subtraction (orange). A pre-subtraction with mean has been applied on the PCA background subtracted cube before we applied the 9-pixel mask on the star.

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