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Proceedings Paper

Simulation of low-order AO performance on LAMOST
Author(s): Hua Bai; Xiangyan Yuan
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Paper Abstract

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.

Paper Details

Date Published: 28 July 2010
PDF: 6 pages
Proc. SPIE 7736, Adaptive Optics Systems II, 773647 (28 July 2010); doi: 10.1117/12.856824
Show Author Affiliations
Hua Bai, Nanjing Institute of Astronomical Optics & Technology (China)
Xiangyan Yuan, Nanjing Institute of Astronomical Optics & Technology (China)

Published in SPIE Proceedings Vol. 7736:
Adaptive Optics Systems II
Brent L. Ellerbroek; Michael Hart; Norbert Hubin; Peter L. Wizinowich, Editor(s)

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