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Fig. 9.
Top 9 panels: variation of the shape of the PSF with the Strehl ratio after perfect compensation of the first 2 (tip-tilt only), 18, 36, and 81 aberration modes. Lowermost 3 panels: variation with Strehl of the diameter of the PSF containing 80% of the encircled energy for the same number of compensated modes.
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