Open Access
Table 1
Simulation parameters.
| Telescopes | |
| Diameter | 8.0, 16.0 |
| Throughput | 100% |
| Central obstruction | None |
| Natural guide star | |
| Zenith angle | 0° |
| Magnitudes | 5–19 |
| Zero point | 8.96 × 109 photons s−1 m−2 |
| Modulation | 4 λ/D |
| Laser guide star | |
| Zenith angle | 0° |
| Magnitudes | 5–14 |
| Zero point | 8.96 × 109 photons s−1 m−2 |
| Number of samples | 10000 |
| Sodium profile | TopHatPeak |
| Atmosphere | |
| r0 | 15 cm |
| L0 | 25 m |
| Layers | 1 |
| Altitudes | 0 m |
| Wind speed | 0 m s−1 |
| WFS | |
| Order for 8 m telescope | 60 × 60 subapertures |
| Order for 16 m telescope | 80 × 80 subapertures |
| Frequency | 1 kHz |
| ϕsens | 589 nm |
| DM | |
| Order for 8 m telescope | 17 × 17 actuators (200 KL modes) |
| Order for 16 m telescope | 33 × 33 actuators (800 KL modes) |
| AO loop | |
| Delay | 2 frames |
| Gain | 0.3 |
| Science | |
| λsci | 589 nm |
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