2000/03/01 by Peter Wizinowich, P. Wizinowich, D. S. Acton +30 · 378 citations
Engineering · Physics and Astronomy · #Active optics #Adaptive optics #Adaptive optics and wavefront sensing #Advanced optical system design #Angular diameter #Angular resolution (graph drawing) #Astronomy #Observational astronomy #Optical Systems and Laser Technology #Optical telescope #Optics #Physics #Remote sensing #Stars #Telescope
paper · pdf · doi:10.1086/316543
published in Publications of the Astronomical Society of the Pacific 112(769), 315-319 (Institute of Physics)
openalex publication_date 2000/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Adaptive optics (AO) is a technology that corrects in real time for the blurring effects of atmospheric turbulence, in principle allowing Earth‐bound telescopes to achieve their diffraction limit and to "see" as clearly as if they were in space. The power of AO using natural guide stars has been amply demonstrated in recent years on telescopes up to 3–4 m in diameter. The next breakthrough in astronomical resolution was expected to occur with the implementation of AO on the new generation of large, 8–10 m diameter telescopes. In this paper we report the initial results from the first of these AO systems, now coming on line on the 10 m diameter Keck II Telescope. The results include the highest angular resolution images ever obtained from a single telescope (0 022 and 0 040 at 0.85 and 1.65 μm wavelengths, respectively), as well as tests of system performance on three astronomical targets.