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Fig. 5.


Upper line: minimal standard deviation (Cramér-Rao lower bounds) δ  =  {δα, δx0, δy0} on the estimated parameters Ω  =  {α, x0, y0} (δx0 and δy0 are normalized by the inverse of the flux α of the exoplanet and expressed in pixels unit). Middle line: magnification of the area near the host star. Lower line: coefficients of correlation ρ  =  {ραx0, ραy0, ρx0y0} between the estimated parameters Ω  =  {α, x0, y0}. The computation is performed on the HIP 72192 dataset at λ1  =  2.110 μm. The positions of the two real faint point sources in the dataset (which are not visible on these maps because it does not act of detection maps) are represented by a circle.

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