5σ detection limits of our SPHERE/IRDIS observations in the H (upper panel) and Ks bands (lower panel). On the left axis the magnitude contrast with respect to the primary star is reported, and the absolute magnitudes are converted to detectable planet masses with AMES-COND models as indicated on the right axis; this scale varies between the H and Ks bands. The solid yellow lines represent the limits when no PSF subtraction is performed. The dashed lines indicate the sensitivity, when a PSF subtraction with RDI plus PCA is performed. The red star highlights the contrast of YSES 2b that we detect at ~ 5σ significance in both filters after PSF subtraction with more than 50 principal components.
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