EAGLE MOAO system conceptual design and related technologies
Gérard Rousset
(1, 2, 3)
,
Thierry Fusco
(3, 4)
,
François Assémat
(1, 2, 3, 4)
,
Éric Gendron
(1, 2, 3)
,
Timothy J. Morris
(5)
,
Christian Robert
(6, 3)
,
Richard M. Myers
(5)
,
Mathieu Cohen
(7, 3)
,
Nigel A. Dipper
(5)
,
Christopher Evans
(8)
,
Damien Gratadour
(1, 2, 3)
,
Pascal Jagourel
(7, 3)
,
Philippe Laporte
(7, 3)
,
David Le Mignant
(9)
,
Mathieu Puech
(7, 3)
,
Hermine Schnetler
(8)
,
William D. Taylor
(8)
,
Fabrice Vidal
(1, 2, 3)
,
Jean-Gabriel Cuby
(9)
,
Matthew D. Lehnert
(7, 3)
,
Simon L. Morris
(5)
,
Philip Parr-Burman
(8)
1
LESIA -
Laboratoire d'études spatiales et d'instrumentation en astrophysique
2 Pôle Astronomie du LESIA
3 GIS PHASE - Groupement d'Intérêt Scientifique du Partenariat Haute résolution Angulaire Sol-Espace
4 ONERA - The French Aerospace Lab [Châtillon]
5 Duke University [Durham]
6 ONERA
7 GEPI - Galaxies, Etoiles, Physique, Instrumentation
8 United Kingdom Astronomy Technology Ctr
9 LAM - Laboratoire d'Astrophysique de Marseille
2 Pôle Astronomie du LESIA
3 GIS PHASE - Groupement d'Intérêt Scientifique du Partenariat Haute résolution Angulaire Sol-Espace
4 ONERA - The French Aerospace Lab [Châtillon]
5 Duke University [Durham]
6 ONERA
7 GEPI - Galaxies, Etoiles, Physique, Instrumentation
8 United Kingdom Astronomy Technology Ctr
9 LAM - Laboratoire d'Astrophysique de Marseille
Thierry Fusco
- Fonction : Auteur
- PersonId : 1160943
- IdHAL : thierry-fusco
- ORCID : 0000-0002-0795-0856
- IdRef : 05777658X
Damien Gratadour
- Fonction : Auteur
- PersonId : 1308516
- IdHAL : dgratadour
- ORCID : 0000-0003-2080-7189
- IdRef : 119639130
Résumé
EAGLE is the multi-object spatially-resolved near-IR spectrograph instrument concept for the E-ELT, relying on a distributed Adaptive Optics, so-called Multi Object Adaptive Optics. This paper presents the results of a phase A study. Using 84×84 actuator deformable mirrors, the performed analysis demonstrates that 6 laser guide stars (on an outer ring of 7.2' diameter) and up to 5 natural guide stars of magnitude R < 17, picked-up in a 7.3' diameter patrol field of view, allow us to obtain an overall performance in terms of Ensquared Energy of 35% in a 75×75mas2 resolution element at H band whatever the target direction in the centred 5' science field for median seeing conditions. In terms of sky coverage, the probability to find the 5 natural guide stars is close to 90% at galactic latitudes |b| ~ 60 deg. Several MOAO demonstration activities are also on-going.