Design and predicted performance of the GMT ground-layer adaptive optics mode

Phillip M. Hinz; Guido Brusa; Vidhya Vaitheeswaran; Tom McMahon; Tom Connors; Russell Knox; Antonin Bouchez; Manny Montoya

doi:10.1117/12.926727

Design and predicted performance of the GMT ground-layer adaptive optics mode

Phillip M. Hinz, Guido Brusa, Vidhya Vaitheeswaran, Tom McMahon, Tom Connors, Russell Knox, Antonin Bouchez, Manny Montoya

Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

11 Scopus citations

Abstract

The Giant Magellan Telescope is planning to provide adaptive wavefront correction of the low layers (<1 km) of atmospheric turbulence in support of wide-field instrumentation. This ground-layer adaptive optics (GLAO) mode will use the adaptive secondary mirrors to provide improved image quality over approximately 7 arcminutes FOV. We present a comparison between the use of a sodium laser guide star asterism plus three tip-tilt natural guide stars versus natural guide stars only on the average seeing width improvement. The layout and components of both (laser beacon based and natural star only based) GLAO concepts are described and the impact and interaction with other GMT subsystems is analyzed.

Original language	English (US)
Title of host publication	Adaptive Optics Systems III
DOIs	https://doi.org/10.1117/12.926727
State	Published - Dec 1 2012
Event	Adaptive Optics Systems III - Amsterdam, Netherlands Duration: Jul 1 2012 → Jul 6 2012

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8447
ISSN (Print)	0277-786X

Other

Other	Adaptive Optics Systems III
Country	Netherlands
City	Amsterdam
Period	7/1/12 → 7/6/12

Keywords

Adaptive optics
Extremely large telescopes
Laser guidestar
Tomography
Wavefront sensing

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.926727

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Design and predicted performance of the GMT ground-layer adaptive optics mode. / Hinz, Phillip M.; Brusa, Guido; Vaitheeswaran, Vidhya; McMahon, Tom; Connors, Tom; Knox, Russell; Bouchez, Antonin; Montoya, Manny.

Adaptive Optics Systems III. 2012. 84473R (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8447).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hinz, PM, Brusa, G, Vaitheeswaran, V, McMahon, T, Connors, T, Knox, R, Bouchez, A & Montoya, M 2012, Design and predicted performance of the GMT ground-layer adaptive optics mode. in Adaptive Optics Systems III., 84473R, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8447, Adaptive Optics Systems III, Amsterdam, Netherlands, 7/1/12. https://doi.org/10.1117/12.926727

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