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Adaptive optics concept for multi-object 3D spectroscopy on ELTs

Published online by Cambridge University Press:  17 May 2006

B. Neichel ,
T. Fusco ,
M. Puech ,
J-M. Conan ,
M. Le Louarn ,
E. Gendron ,
F. Hammer ,
G. Rousset ,
P. Jagourel  and
P. Bouchet
B. Neichel
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: benoit.neichel@obspm.fr ONERA, BP 72, 92322 Chatillon Cedex, France
T. Fusco
Affiliation:
ONERA, BP 72, 92322 Chatillon Cedex, France
M. Puech
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: benoit.neichel@obspm.fr
J-M. Conan
Affiliation:
ONERA, BP 72, 92322 Chatillon Cedex, France
M. Le Louarn
Affiliation:
ESO-European Southern Observatory, Karl-Schwarzschild-Straße 2, Garching, D-85748 Germany
E. Gendron
Affiliation:
LESIA, Observatoire de Paris, 5 Place Jules Janssen 92195 Meudon, France
F. Hammer
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: benoit.neichel@obspm.fr
G. Rousset
Affiliation:
LESIA, Observatoire de Paris, 5 Place Jules Janssen 92195 Meudon, France
P. Jagourel
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: benoit.neichel@obspm.fr
P. Bouchet
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: benoit.neichel@obspm.fr
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Abstract

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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 (1.65$\mu$m) 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.

Keywords

instrumentation: adaptive optics — techniques: 3D spectroscopy — galaxies: high-redshift