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- W2083670230 abstract "The central core intensity of a stellar image observed by a ground-based telescope can be maximized by a judicious balancing of the adaptive optics system and the size of the telescope entrance aperture. For a given aperture, increasing the number of degrees of adaptive optics turbulence compensation will maximize the brightness of the central core. However, for an observatory using an adaptive optics system with a fixed number of degrees-of-freedom, the largest aperture available will not necessarily result in a maximized image central core. The negative effects of atmospheric turbulence, roughly proportional to (formula available in paper) cannot always be compensated by the increased light gathering ability of a larger aperture (proportional to D<SUP>2</SUP>). It is shown and verified through simulation that the optimum aperture diameter is a function of N<SUP>p</SUP> r<SUB>o</SUB> where N is the number of adaptive optics degrees of freedom and r<SUB>o</SUB> is the seeing cell size. The simulations show that the exponent p is related to the control algorithm or, more precisely, the figure-of-merit used to drive the deformable mirror actuators. Optimizing the useful aperture of the telescope/adaptive optics system is a strategy that can make use of the variation in site seeing conditions and benefit the astronomer by increasing the available number of observable science objects or reducing the observing time." @default.
- W2083670230 created "2016-06-24" @default.
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- W2083670230 date "1994-05-31" @default.
- W2083670230 modified "2023-09-26" @default.
- W2083670230 title "<title>Analysis and simulation of aperture-sizing strategies with partial adaptive optics</title>" @default.
- W2083670230 doi "https://doi.org/10.1117/12.176112" @default.
- W2083670230 hasPublicationYear "1994" @default.
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