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Adaptive optics (AO) and ground-layer AO for Dome C: numerical simulation results

Published online by Cambridge University Press:  24 December 2009

L. Spinoglio ,
N. Epchtein ,
M. Carbillet ,
A.-L. Maire ,
B. Le Roux ,
E. Aristidi ,
C. Giordano ,
O. Pasqueron de Fommervault ,
J. Gautier  and
H. Trinquet
M. Carbillet
Affiliation:
UMR 6525 H. Fizeau, Université de Nice Sophia Antipolis/CNRS/Observatoire de la Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France
A.-L. Maire
Affiliation:
UMR 6525 H. Fizeau, Université de Nice Sophia Antipolis/CNRS/Observatoire de la Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France Master “Physique Fondamentale et Appliquée” MEGA, Université de Nice Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
B. Le Roux
Affiliation:
UMR 6110 Laboratoire d'Astrophysique de Marseille, Observatoire Astronomique de Marseille Provence, Université de Provence/CNRS, 13388 Marseille Cedex 13, France
E. Aristidi
Affiliation:
UMR 6525 H. Fizeau, Université de Nice Sophia Antipolis/CNRS/Observatoire de la Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France
C. Giordano
Affiliation:
UMR 6525 H. Fizeau, Université de Nice Sophia Antipolis/CNRS/Observatoire de la Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France
O. Pasqueron de Fommervault
Affiliation:
UMR 6525 H. Fizeau, Université de Nice Sophia Antipolis/CNRS/Observatoire de la Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France
J. Gautier
Affiliation:
UMR 6525 H. Fizeau, Université de Nice Sophia Antipolis/CNRS/Observatoire de la Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France Licence de Physique, Université de Nice Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
H. Trinquet
Affiliation:
UMR 6525 H. Fizeau, Université de Nice Sophia Antipolis/CNRS/Observatoire de la Côte d'Azur, Parc Valrose, 06108 Nice Cedex 2, France
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Abstract

We present the latest results of our on-going closed-loop “end-to-end” numerical adaptive optics (AO) simulations concerning both a standard-AO and a three-star ground-layer AO system for a near-infrared 2-m class telescope at Dome C, Antarctica. We demonstrate that Dome C is an ideal site for wide-field AO-aided astronomy, define in details the AO system(s) optimized for the median turbulence profile considered, and finally show that a ~0.3 Strehl ratio and 200-mas-wide stable point-spread function is reached in band J on at least a 15'-diameter field.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 40: 3rd ARENA Conference: An Astronomical Observatory at CONCORDIA (Dome C, Antarctica) , 2010 , pp. 157 - 164
Copyright
© EAS, EDP Sciences, 2010

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References

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