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Fig. 3
Image of HD142527 before (top panel) and after (bottom panel) the insertion of the negative companionresulting from the Hessian matrix algorithm. The image flux scale is the same in both images. In this case 14 PCs were subtracted and a mask of 10.8 mas (radius) was applied on the 101 × 101 pixels images of the N_Ha stack.
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