Fast computation of 2D transfer functions from adaptive optics data

Details Fast computation of 2D transfer functions from adaptive optics data Fast computation of 2D transfer functions from adaptive optics data

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010an....331..662w&link_type=abstract

Astronomische Nachrichten, Vol.331, Issue 6, p.662

Physics

Optics

Atmospheric Effects, Instrumentation: Adaptive Optics, Techniques: Image Processing

Scientific paper

The use of atmospheric transfer functions is common in image reconstruction techniques such as speckle interferometry to calibrate the Fourier amplitudes of the reconstructed images. Thus, an accurate model is needed to ensure proper photometry in the reconstruction. The situation complicates when adaptive optics (AO) are used during data acquisition. I propose a novel technique to derive two-dimensional transfer functions from data collected using AO simultaneously with the observations. The technique is capable to compute the relevant transfer functions within a short time for the prevailing atmospheric conditions and AO performance during data acquisition.

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