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28 July 2010 Anisoplanatism across wide fields at high-frame rates
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Abstract
In this paper we present a preliminary analysis of variation in the isoplanatic patch size over short timescales and wide angular separations. We tested a visible band photon counting camera running with four 1K2 detectors to provide a contiguous field of view of 1000 × 4000 pixels. Resolution was 35-100 mas per pixel at frame rates from 20-111hz, providing data on atmospheric turbulence at angular separations of up to 400 arcseconds. We discuss the potential of such cameras to perform high resolution optical surveys using developments of standard lucky imaging techniques, and the implications of our results for adaptive optics systems design.
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Tim D. Staley, Craig D. Mackay, David King, Frank Suess, and Keith Weller "Anisoplanatism across wide fields at high-frame rates", Proc. SPIE 7736, Adaptive Optics Systems II, 77364T (28 July 2010); https://doi.org/10.1117/12.856124
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