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Table 4

H band (1650 nm) SR as a function of natural guide star R magnitude and seeing for a non-modulated and a modulated PWFS.

Seeing (arcsec) R magn. Sub-ap. size (m) Freq. (Hz) SR(H) no mod. SR(H) rmod = 3λ/D
0.4 8.0 0.2 1700 0.968 0.968
0.8 8.0 0.2 1700 0.899 0.902
1.2 8.0 0.2 1700 0.781 0.805
0.4 12.0 0.2 900 0.957 0.949
0.8 12.0 0.2 900 0.870 0.863
1.2 12.0 0.2 900 0.731 0.735
0.4 12.0 0.4 1200 0.923 0.917
0.8 12.0 0.4 1200 0.751 0.748
1.2 12.0 0.4 1200 0.518 0.514
0.4 14.5 0.4 750 0.892 0.866
0.8 14.5 0.4 750 0.651 0.628
1.2 14.5 0.4 750 0.347 0.339
0.4 14.5 0.6 1000 0.828 0.805
0.8 14.5 0.6 1000 0.474 0.458
1.2 14.5 0.6 1000 0.183 0.182
0.4 16.5 0.6 250 0.737 0.679
0.8 16.5 0.6 250 0.288 0.279
1.2 16.5 0.6 250 0.066 0.065
0.4 16.5 0.8 500 0.657 0.593
0.8 16.5 0.8 500 0.171 0.160
1.2 16.5 0.8 500 0.024 0.024

Notes. We note that for a sub-aperture size of 0.2, 0.4, 0.6, and 0.8 m, the 500, 209, 90, and 54 modes are corrected respectively. Refers to the 8 m-class telescope case.

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