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Fig. 1


5σ residual noise levels, without ADI reduction, for the two science modules of SPHERE, IRDIS and IFS, in IRDIFS mode. The curves refer to the dataset described in Table 2, where we injected the synthetic planets. The vertical dotted line represents the radius of the coronagraph, i.e., the zone where the detectors are blind. The mean azimuthal profile of the off-axis PSF (black), the coronagraphic profile (red) are shown for the two IRDIS channels H2 (continuous line) and H3 (dashed line). The contrast results after the SDI reduction (green) and SD reduction for IFS (blue) are shown.

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