NAOS, the first AO system of the VLT: on-sky performance

  title={NAOS, the first AO system of the VLT: on-sky performance},
  author={G'erard Rousset and François Lacombe and Pascal Puget and Norbert N. Hubin and Eric Gendron and Thierry Fusco and Robin Arsenault and Julien Gerard Ernest Charton and Philippe Feautrier and Pierre Gigan and Pierre Y. Kern and Anne-Marie Lagrange and Pierre-Yves Madec and David Mouillet and Didier Rabaud and Patrick Rabou and Eric Stadler and G{\'e}rard Zins},
  booktitle={SPIE Astronomical Telescopes + Instrumentation},
NAOS is the first adaptive optics system installed at the VLT 8m telescopes. It was designed, manufactured and tested by a french Consortium under an ESO contract, to provide compensated images to the high angular resolution IR spectro-imaging camera (CONICA) in the 1 to 5 μm spectral range. It is equipped with a 185 actuator deformable mirror, a tip/tilt mirror and two wavefront sensors, one in the visible and one in the near IR spectral range. It has been installed in November at the Nasmyth… 
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