Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26as..111..153g&link_type=abstract
Astronomy and Astrophysics Supplement, v.111, p.153
Astronomy and Astrophysics
Astrophysics
15
Atmospheric Effects, Methods: Data Analysis, Telescopes-, Techniques: Miscellaneous
Scientific paper
A previous paper discussed the possible improvement of the image quality given by an adaptive optics (AO) system by optimizing its spatial and temporal correction performance. Considering the perturbed wavefront as a weighted sum of spatial modes, this optimization leads us to attribute a specific correction band width to each mode, depending on its signal to noise ratio and correlation time. These parameters are related to the particular observation being carried out as they depend on the magnitude, colour and extension of the reference source, on the seeing conditions and on the system characteristics. In this article these considerations are verified on the basis of experimental data provided by the wave-front analyser of the AO system ComeOnPlus. Algorithms to process the wavefront data are described and their performance and robustness are discussed. The results are analysed and the efficiency of the AO system is derived in terms of the reference source magnitude and atmospheric conditions.
Gendron Eric
Léna Pierre
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