The Guieloa Adaptive Optics System for the Observatorio Astronómico Nacional

Physics – Optics

Scientific paper

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Instrumentation: Adaptive Optics

Scientific paper

We describe progress in the construction of an adaptive optics system for the 2.1-meter telescope of the Observatorio Astronómico Nacional on Sierra San Pedro Mártir. The system will use a 19 element bimorph deformable mirror mounted on an articulated platform and a curvature wavefront sensor with natural guide stars. Guieloa will have two modes of operation. In adaptive optics mode, the system is expected to give excellent correction above 1.0 μm and good correction down to 0.6-0.9 μm, depending on the seeing, although the sky coverage will be limited. In "active optics and fast guiding mode", the system should give images at or better than the natural seeing of the site and have much greater sky coverage. The system is currently undergoing laboratory testing and should be commissioned in 2009.

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