13 September 2012 Size of the halo of the adaptive optics PSF
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Abstract
It is a widely accepted conjecture that the width of the incoherent halo in an adaptive optics point-spread function (PSF) should decrease with the level of correction. Using end-to-end simulations we prove that this is not the case and the halo is actually increasing in width, albeit at a decreasing overall brightness level as must be the case with increasing correction. The simulations span the cases of: seeing-limited, partial-, and high-order adaptive-optics (AO) correction. We show the relationship between the theory of partially-developed speckle and the observed statistical behavior of on-axis PSF intensity. Finally, we check the results of the simulations with real data obtained using the 3.5m Starfire Optical Range telescope located in New Mexico, US.
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Szymon Gladysz, Miska Le Louarn, Natalia Yaitskova, Aurea Garcia-Rissmann, Lee Kann, Jack D. Drummond, Robert L. Johnson, Dan Roskey, "Size of the halo of the adaptive optics PSF", Proc. SPIE 8447, Adaptive Optics Systems III, 844725 (13 September 2012); doi: 10.1117/12.925537; https://doi.org/10.1117/12.925537
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