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SBIG - Adaptive Optics - AO-X


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Manufactured by: Santa Barbara Instrument Group (SBIG)


SBIG Adaptive Optics - AO-X

The SBIG ADAPTIVE OPTICS AO-X is a new large aperture AO for the STX and STXL cameras.  It requires the FW8G-STXL Filter Wheel or STT-STXL Remote Guide Head and OAG to operate the AO-8X. This is a new AO design that minimizes the backfocus requirement while offering a large (3" aperture) optical element to cover the 16803 CCD.  It is also recomended for the STXL-11002 and STXL-6303.  Telescope mounts cannot correct faster than about once per second.  The 10Hz rate of the AO-X will clearly result in improved resolution under the right conditions


AO Results

The images below are actual star images showing the effect of image wander corrected at 1 Hz and 10 Hz:

Left: 1Hz Corrections

Right: 10Hz Corrections



Other data gathered by Brad Wallis of JPL (Brad Wallis and Benoit Schillings developed the prototype for the original AO-7) show the the effect of rapid corrections on poor seeing.  At 1 Hz the larger, slower component is reduced, but the amplitude of the jitter remains about the same:



However, at a 5Hz correction rate, the faster jitter is reduced:





And at a 10 Hz correction rate, significant improvement is seen:



The improvement in stellar profiles can also be seen at corrections above 1 Hz.  First by looking at the non-AO guided image:


And comparing the non-AO guided image to the AO guided image there is again significant improvement in the FWHM of the star profile:




Telescope mounts canot correct faster than about once per second.  The 10Hz rate of the AO-X will clearly result in improved resolution under the right conditions.







Additional Information

Name SBIG - Adaptive Optics - AO-X
Manufacturer Santa Barbara Instrument Group (SBIG)
Model AO-X
Manufacturer Part No AO-X