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Proceedings Paper

Curvature wavefront sensing performance simulations for active correction of the Javalambre wide-field telescopes
Author(s): Sergio Chueca; Antonio Marín-Franch; Andrés Javier Cenarro; Jesús Varela; Alessandro Ederoclite; David Cristóbal-Hornillos; Carlos Hernández-Monteagudo; Nicolás Gruel; Mariano Moles; Axel Yanes; Fernando Rueda; Sergio Rueda; Roberto Luis-Simoes; Javier Hernández-Fuertes; Angel López-Sainz; Natalio Maícas-Sacristán; José Luis Lamadrid; Miguel Chioare Díaz-Martín; Keith Taylor
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Paper Abstract

In order to maintain image quality during Javalambre wide field telescope operations, deformations and rigid body motions must be actively controlled to minimize optical disturbances. For JST/T250 the aberrations of the telescope will be measured with four curvature sensors at the focal plane. To correct the measured distortions, the secondary mirror position (with a hexapod support) and the camera position can be modified in a control closed loop. Multiple software tools have been developed to accomplish this goal, constituting the "Observatorio Astrofísico de Javalambre" (OAJ) Active Optics Pipeline. We present a comprehensive analysis of the wave-front sensing system, including the availability of reference stars, pupil registration, wavefront estimators and the iteration matrix evaluation techniques. Some preliminary simulations have been made using a telescope model with a Optical Ray Tracing Software.

Paper Details

Date Published: 13 September 2012
PDF: 15 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84500I (13 September 2012); doi: 10.1117/12.925429
Show Author Affiliations
Sergio Chueca, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Antonio Marín-Franch, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Andrés Javier Cenarro, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Jesús Varela, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Alessandro Ederoclite, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
David Cristóbal-Hornillos, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Carlos Hernández-Monteagudo, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Nicolás Gruel, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Mariano Moles, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Instituto de Astrofísica de Andalucía, CSIC (Spain)
Axel Yanes, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Fernando Rueda, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Sergio Rueda, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Roberto Luis-Simoes, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Javier Hernández-Fuertes, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Angel López-Sainz, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Natalio Maícas-Sacristán, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
José Luis Lamadrid, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Miguel Chioare Díaz-Martín, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Keith Taylor, Observatorio Nacional (Brazil)


Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)

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