Fig. 1
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H-band IRDIS 40 s images obtained with the SPHERE baseline configuration (left) and after the dark hole calibration optimized at H3 band (center). The right image is the H-band IRDIS 8 s image of the reference star HD 109536 using the dark hole calibration optimized on HR 4796. The color bars give the intensity normalized to the maximum of the star image recorded with no coronagraph. The color bar and the spatial scale are the same for the three images.
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