Table 2
RMS of turbulence residuals (i.e. partial correction) in nm for a bright star condition.
| Sub-ap. | Seeing (arcsec) | |||||
|---|---|---|---|---|---|---|
| size (m) | 0.4 | 0.6 | 0.8 | 1.0 | 1.2 | 1.4 |
| rmod = 0λ/D | ||||||
| 0.2 | 48 | 67 | 88 | 111 | 137 | 164 |
| 0.4 | 73 | 107 | 143 | 164 | 219 | 261 |
| 0.6 | 116 | 174 | 240 | 303 | 365 | 428 |
| 0.8 | 178 | 270 | 360 | 456 | 551 | 660 |
| rmod = 3λ/D | ||||||
| 0.2 | 48 | 67 | 84 | 103 | 122 | 144 |
| 0.4 | 76 | 107 | 138 | 175 | 214 | 254 |
| 0.6 | 122 | 177 | 234 | 292 | 350 | 416 |
| 0.8 | 188 | 272 | 360 | 450 | 551 | 659 |
Notes. PWFS with and without modulation and different seeing and sub-aperture size values are considered. These values are computed on the sets of turbulence residual samples used to compute the SIMPCs (see Sect. 2). Refers to the 8 m-telescope case.
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