7 August 2014 Design and numerical simulations of the GMT Natural Guide star WFS
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Abstract
The NGSAO, a single conjugated AO system operating with natural guide star, will be the first AO system to be operative at the Giant Magellan Telescope. The Natural Guide star Wavefront Sensor will be in charge of the entire wavefront error measurement, namely atmospheric turbulence and telescope aberrations, including the segment differential piston error. In this paper we report the opto-mechanical design of the NGWS that successfully passed the preliminary design review in July 2013. Moreover, we present the NGSAO control strategy identified for the GMT segmented pupil and the system performances for different conditions of seeing and reference star magnitude.
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E. Pinna, E. Pinna, G. Agapito, G. Agapito, F. Quirós-Pacheco, F. Quirós-Pacheco, J. Antichi, J. Antichi, L. Carbonaro, L. Carbonaro, R. Briguglio, R. Briguglio, M. Bonaglia, M. Bonaglia, A. Riccardi, A. Riccardi, A. Puglisi, A. Puglisi, V. Biliotti, V. Biliotti, C. Arcidiacono, C. Arcidiacono, M. Xompero, M. Xompero, G. Di Rico, G. Di Rico, A. Valentini, A. Valentini, A. Bouchez, A. Bouchez, F. Santoro, F. Santoro, G. Trancho, G. Trancho, S. Esposito, S. Esposito, } "Design and numerical simulations of the GMT Natural Guide star WFS", Proc. SPIE 9148, Adaptive Optics Systems IV, 91482M (7 August 2014); doi: 10.1117/12.2057059; https://doi.org/10.1117/12.2057059
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