Fig. 9
Results for HD 100546 in M′ band after the PSF subtraction with PynPoint and pre-stacking of ten images. Panels a andc: results with mean background subtracted frames and a PSF subtraction with three and 11 principal components, respectively. Panels a and c: results with PCA residual background subtracted frames and a PSF subtraction with three and 11 principal components, respectively. The radius of the inner mask is 0.2′′ . North is up and east is to the left of the images. The scale is in arbitrary linear units.
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