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15 July 2008 Concept for the Keck Next Generation Adaptive Optics system
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Abstract
The Next Generation Adaptive Optics (NGAO) system will represent a considerable advancement for high resolution astronomical imaging and spectroscopy at the W. M. Keck Observatory. The AO system will incorporate multiple laser guidestar tomography to increase the corrected field of view and remove the cone effect inherent to single laser guide star systems. The improvement will permit higher Strehl correction in the near-infrared and diffraction-limited correction down to R band. A high actuator count micro-electromechanical system (MEMS) deformable mirror will provide the on-axis wavefront correction to a number of instrument stations and additional MEMS devices will feed multiple channels of a deployable integral-field spectrograph. In this paper we present the status of the AO system design and describe its various operating modes.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Donald Gavel, Richard Dekany, Claire Max, Peter Wizinowich, Sean Adkins, Brian Bauman, Jim Bell, Erik Johansson, Renate Kupke, Chris Lockwood, Anna Moore, Chris Neyman, Marc Reinig, and Viswa Velur "Concept for the Keck Next Generation Adaptive Optics system", Proc. SPIE 7015, Adaptive Optics Systems, 701567 (15 July 2008); https://doi.org/10.1117/12.790250
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