Mode Number |
AO config |
F/43 focus |
F/11 focus |
Science Case |
3 |
S64 or S32 |
Flexure and exp. meter |
Single-mode fiber |
10 cm/s precision radial velocity for exoplanet study (Johnson) |
3 |
> 650nm for WFS |
< 500nm for Andor |
feeding precision RV spectrograph (need to identify) |
10 cm/s precision radial velocity for exoplanet study (Johnson) |
1 |
S64 |
Imaging filter |
Acquisition |
12 mas/pixel imaging for all visible wavelengths |
6 |
S8 |
Flexure & DAR |
Dual, scrambled multi-mode fiber |
5 m/s RV of close (<2") binary stars (Johnson) |
6 |
S8 |
compensation |
w/ one on 2-axis stage |
5 m/s RV of close (<2") binary stars (Johnson) |
1 |
S64 |
Imaging filter |
Acquisition |
AO-assisted speckle (Lucky) imaging (Hildebrandt) |
5 |
S8 |
TBD |
GLAO w/ ~0.3" FWHM across moderate field |
Astrometry survey / identification of transients contexts |
5 |
S8 |
TBD |
across visible wavelength |
Astrometry survey / identification of transients contexts |
4 |
S32 or S64 |
Flexure compensation |
Imaging filter 2 |
Deep (long-exposure) visible imagery / galaxy morphology / UDF |
2 |
S64 or S32 |
Imaging filter 1 |
Imaging filter 2 |
Dual-color photometry on different plate scales |
1 |
S64 |
Imaging filter |
Acquisition |
Lowest R imaging of faintest targets |
2 |
S64 or S32 |
Imaging filter 1 |
Imaging filter 2 |
Narrow field PSF reference for wider-field astrometry |
4 |
S32 or S64 |
Flexure compensation |
Imaging filter 2 |
Red-channel coronagraphy (e.g. Serabyn (vortex coronagraphy)) |
2 |
S64 or S32 |
Imaging filter 1 |
Imaging filter 2 |
Scattered light subtraction for extragalactic emission line science (Dekany) |