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Table A.1
List of the variables used in this paper.
| Variables | |
|
|
|
| A | Coronagraphic attenuation peak |
| C | Image correlation between Ics and Icr |
| D | Telescope diametre |
| I c | Intensity of the coronagraphic image |
| I cr | Intensity of the coronagraphic reference |
| image corresponding to the best | |
| attenuation | |
| I cs | Intensity of the shifted coronagraphic image |
| I i | Normalized integrated intensity in each |
| quadrant Qi | |
| I nc | Intensity of the non coronagraphic image |
| L | Lyot stop |
| M | Focal mask |
| Q i | Quadrants in the central area S of |
| the coronagraphic image | |
| R | Ratio  |
| S | Central area of the coronagraphic |
| image | |
| Tx (Ty) | x-tilt (y-tilt) upstream |
| of the coronagraph | |
| Tx,m and Ty.m | Command applied on the tip-tilt mirror |
| α, β | Multiplicative coefficients |
| defined by numerical simulation | |
| Γ | Ring-shape mask |
| γx (γy) | Shift of the detector in x (y) direction |
| γx, est (γy, est) | Estimated shift of the |
| detector in x (y) direction | |
| ΔIx (ΔIy) | Intensity difference |
| in x (y) direction in the central area S | |
| ΔIx,r (ΔIy,r) | Intensity |
| difference in x (y) direction in the central | |
| area of the coronagraphic reference image | |
| (φ ≠ 0) | |
| Δx (Δy) | Eqs. (11) and (12) |
| λ | wavelength |
| φ | Wavefront error (WFE) |
| ψ ′ | Monochromatic electric field |
| upstream of the coronagraph | |
| ψ | Monochromatic electric field |
| downstream of the coronagraph | |
| ξ, ν | Spatial coordinates in the |
| entrance pupil | |
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