Evidence of a chaotic attractor in star-wander data

Evidence of a chaotic attractor in star-wander data

The observed motion of stellar-image centroids is shown to have a chaotic attractor with a correlation dimension of ~6. The existence of a chaotic attractor in star wander, or equivalently in wave-front tilts, indicates that the atmospheric processes that cause image degradation may be more accurate...

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Veröffentlicht in:Optics letters 1991-01, Vol.16 (2), p.64-66
Hauptverfasser: JORGENSON, M. B, AITKEN, G. J. M, HEGE, E. K
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Atmospheric optics
Earth, ocean, space
Exact sciences and technology
External geophysics
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container_title Optics letters
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creator JORGENSON, M. B
AITKEN, G. J. M
HEGE, E. K
description The observed motion of stellar-image centroids is shown to have a chaotic attractor with a correlation dimension of ~6. The existence of a chaotic attractor in star wander, or equivalently in wave-front tilts, indicates that the atmospheric processes that cause image degradation may be more accurately described as chaotic, not so random as is usually assumed. This new result has important implications for the accurate modeling of atmospheric processes, the operation of adaptive optics systems, and the processing of stellar images.
doi_str_mv 10.1364/OL.16.000064
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subjects Atmospheric optics
Earth, ocean, space
Exact sciences and technology
External geophysics
title Evidence of a chaotic attractor in star-wander data
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