Translator Disclaimer
14 July 2008 VASAO: visible all sky adaptive optics: a new adaptive optics concept for CFHT
Author Affiliations +
VASAO is an ambitious project that explores new conceptual direction in the field of astronomical adaptive optics. In the era of 8 meter and larger telescopes, and their instrument costs and telescope time pressure, there is a natural niche for such ground-breaking conceptual development in the 4 meter class telescope. The aim of VASAO is to provide diffraction limited imaging in the visible with 100% sky coverage; the challenge (but potential rewards) arises from the simultaneity of these requirements. To this end, CFHT is conducting a feasibility study based on the polychromatic guide star concept (Foy et al., 1995 [4]) coupled with a high order curvature AO system, presented in this paper. A number of experiments have been started (or carried out) to study the challenges and limits of the techniques involved in an operational setting; these include the FlyEyes detector, and a polychromatic tip-tilt test on natural stars. Because such a project straddles such a fine line between facility instrument and experimental facility, careful thought has to be given to the balance between modes of operations and potential astrophysical targets.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Olivier Lai, Christian Veillet, Derrick Salmon, Kevin Ho, Marc R. Baril, Gregory A. Barrick, Jim Thomas, Douglas Teeple, Tom Benedict, Jean Paul Pique, and Hugues Guillet de Chatellus "VASAO: visible all sky adaptive optics: a new adaptive optics concept for CFHT", Proc. SPIE 7015, Adaptive Optics Systems, 701543 (14 July 2008);


VASAO: visible all sky adaptive optics
Proceedings of SPIE (June 27 2006)
Lick sodium laser guide star performance during the 1998...
Proceedings of SPIE (September 26 1999)
W.M. Keck Observatory adaptive optics program
Proceedings of SPIE (August 24 1995)
ONIRICA an infrared camera for OWL with MCAO low...
Proceedings of SPIE (June 26 2006)

Back to Top