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Proceedings Paper

NACO performance: status after 2 years of operation
Author(s): Yann Clenet; Markus E. Kasper; Nancy Ageorges; Christopher Lidman; Thierry Fusco; Olivier Marco; Markus Hartung; David Mouillet; Bertrand Koehler; Gerard Rousset; Norbert N. Hubin
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Paper Abstract

NACO is a VLT/Yepun instrument which provides adaptive optics corrected images in the near and thermal infrared. It is composed of the NAOS adaptive optics system and of an infrared imager CONICA. NACO has been operating since October 2001 and has already delivered a large amount of scientific results in various fields, eg the Solar System (Titan), the Interstellar Medium (outflows in Orion-OMC1), the Galactic Center, the central regions of AGN and ULIRG, ... We present the instrument performance in terms of image quality after two years of operation at Paranal. We first remind the system performance obtained from simulations, design, tests and compare them to the original specifications. We point out the telescope vibrations as a source of performance degradation. We then evaluate the impact of these vibrations on the Strehl ratio. We eventually analyze studies of the telescope vibrations to identify the systems that could excite the telescope vibration modes.

Paper Details

Date Published: 25 October 2004
PDF: 11 pages
Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); doi: 10.1117/12.551148
Show Author Affiliations
Yann Clenet, European Southern Observatory (Germany)
Markus E. Kasper, European Southern Observatory (Germany)
Nancy Ageorges, European Southern Observatory (Chile)
Christopher Lidman, European Southern Observatory (Chile)
Thierry Fusco, ONERA (France)
Olivier Marco, European Southern Observatory (Chile)
Markus Hartung, European Southern Observatory (Chile)
David Mouillet, Lab d'Astrophysique de l'Observatoire de Grenoble (France)
Bertrand Koehler, European Southern Observatory (Germany)
Gerard Rousset, ONERA (France)
Norbert N. Hubin, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 5490:
Advancements in Adaptive Optics
Domenico Bonaccini Calia; Brent L. Ellerbroek; Roberto Ragazzoni, Editor(s)

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