Paper: astro-ph/0512525
Date: Wed, 21 Dec 2005 11:09:35 GMT (13kb)

Title: Adaptive Optics Concept For Multi-Objects 3D Spectroscopy on ELTs

Authors: B. Neichel, T. Fusco, M. Puech, J-M. Conan, M. Lelouarn, E. Gendron,
F. Hammer, G. Rousset, P. Jagourel and P. Bouchet

Comments: 6 pages, 2 figures. To appear in IAU Symposium 232, edited by
Whitelock, Leibundgut and Dennefeld
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In this paper, we present a first comparison of different Adaptive Optics
(AO) concepts to reach a given scientific specification for 3D spectroscopy on
Extremely Large Telescope (ELT). We consider that a range of 30%-50% of
Ensquarred Energy (EE) in H band (1.65um) and in an aperture size from 25 to
100mas is representative of the scientific requirements. From these preliminary
choices, different kinds of AO concepts are investigated : Ground Layer
Adaptive Optics (GLAO), Multi-Object AO (MOAO) and Laser Guide Stars AO (LGS).
Using Fourier based simulations we study the performance of these AO systems
depending on the telescope diameter.

\\ ( http://arXiv.org/abs/astro-ph/0512525 , 13kb)