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Simulation of low-order AO performance on LAMOST
Hua Bai; Xiangyan Yuan
Source PublicationAdaptive Optics Systems II
PagesVol.7736 47-1-6
Conference Date2010-6-27
Conference PlaceSan Diego, California, USA
Funding OrganizationThe International Society for Optical Engineering
Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) is a large aperture and wide field telescope whose image quality requirement at Xinglong station is 80% light energy within 2 arcsecond. In fact, the designed image quality of the central field of view is diffraction limited under optical wavelength. Due to the 60m long light path and
poor natural seeing, dome seeing and other errors, the image quality is averaged about 0.5arcsecond to 1 arcsecond. We consider deploying a low-order adaptive optics system on LAMOST to improve seeing conditions and the corresponding image quality. Based on the sounding balloon results on Xinglong Station, we make the numerical simulation of the AO performance and get Fried parameter, the final point spread function (PSF) characteristics of LAMOST including Strehl ratio, full width at half- maximum (FWHM), and the residual variance.
KeywordLow-order Ao Simulation Lamost Xinglong Station Strehl Ratio Fwhm
Subject Area郭守敬望远镜(lamost) ; 自适应光学
Document Type会议论文
Recommended Citation
GB/T 7714
Hua Bai,Xiangyan Yuan. Simulation of low-order AO performance on LAMOST[C]:SPIE,2010:Vol.7736 47-1-6.
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