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Proceedings Paper

Adaptive optics system for the Very Large Telescope
Author(s): Norbert N. Hubin; Bertrand Theodore; Patrick Petitjean; Bernard Delabre
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Paper Abstract

Adaptive optics is one of the main features of the Very Large Telescope of the European Southern Observatory (ESO). Use of the large telescopes for high spatial resolution imaging, high spectral resolution spectroscopy and astronomical spatial interferometry depends substantially on the availability of adaptive optics, which allows diffraction limited imaging for each individual telescope in the near infrared wavelength range (2.2 to 5 microns) and partial correction of atmospheric distortions towards the visible wavelength range. Recent decisions from ESO Council to postpone the VLT interferometer and the associated adaptive optics and Coude beams has led us to study the implementation of this capability at the Nasmyth focus. We present here the first preliminary conceptual design which follows the outline of the Coude configuration from the performance point of view. Some scientific pre-studies, such as sky coverage evaluation and statistics of observable objects are summarized. Finally an analysis of the different sources of image degradation after the adaptive optics correction, are described.

Paper Details

Date Published: 31 May 1994
PDF: 12 pages
Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); doi: 10.1117/12.176073
Show Author Affiliations
Norbert N. Hubin, European Southern Observatory (Germany)
Bertrand Theodore, European Southern Observatory (Germany)
Patrick Petitjean, European Southern Observatory (Germany)
Bernard Delabre, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 2201:
Adaptive Optics in Astronomy
Mark A. Ealey; Fritz Merkle, Editor(s)

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