Why adaptive secondaries?

Lee, J.H., Bigelow, B.C., Walker, D.D., Doel, A.P. and Bingham, R.G. (2000) Why adaptive secondaries? Publications of the Astronomical Society of the Pacific, 112 (767). pp. 97-107. ISSN 0004-6280

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Abstract

Adaptive optics (AO) combines technologies that enable the correction in real time of the
wavefront distortion caused by the terrestrial atmospheric turbulence. An adaptive secondary mirror (ASM),
unlike conventional adaptive optics systems, does not add any polarization, reÑective losses, and emissivity.
Following successful implementation of tip/tilt secondary mirrors, most recent large telescope projects
have considered the possibility of incorporating ASMs. This paper brieÑy reviews the development of ASMs
and examines the issues which have arisen and also presents the predicted performance of an ASM system. It
is concluded that adaptive secondary approach is an equally satisfactory or preferred solution to conventional
AO systems.

Item Type:	Article
Uncontrolled Keywords:	Science & Technology, Physical Sciences, Astronomy & Astrophysics
Subjects:	T Technology > TS Manufactures
Schools:	School of Computing and Engineering School of Computing and Engineering > Centre for Precision Technologies
Related URLs:	Author
Depositing User:	Catherine Parker
Date Deposited:	01 Dec 2016 14:02
Last Modified:	31 Mar 2018 16:31
URI:	http://eprints.hud.ac.uk/id/eprint/30445

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