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Proceedings Paper

The Giant Magellan Telescope active optics system
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Paper Abstract

The Giant Magellan Telescope active optics system is required to maintain image quality across a 20 arcminute diameter field of view. To do so, it must control the positions of the primary mirror and secondary mirror segments, and the figures of the primary mirror segments. When operating with its adaptive secondary mirror, the figure of the secondary is also controlled. Wavefront and fast-guiding measurements are made using a set of four probes deployed around the field of view. Through a set of simulations we have determined a set of modes that will be used to control fielddependent aberrations without degeneracies.

Paper Details

Date Published: 22 July 2014
PDF: 13 pages
Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91451T (22 July 2014); doi: 10.1117/12.2056435
Show Author Affiliations
Brian McLeod, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Antonin H. Bouchez, Giant Magellan Telescope (United States)
Brady Espeland, Giant Magellan Telescope (United States)
José Filgueira, Giant Magellan Telescope (United States)
Matt Johns, Giant Magellan Telescope (United States)
Timothy J. Norton, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Mark Ordway, Harvard-Smithsonian Ctr. for Astrophysics (United States)
William A. Podgorski, Harvard-Smithsonian Ctr. for Astrophysics (United States)
John Roll, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Carey Smith, Giant Magellan Telescope (United States)


Published in SPIE Proceedings Vol. 9145:
Ground-based and Airborne Telescopes V
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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