EAGLE MOAO system conceptual design and related technologies

G. Rousset; T. Fusco; F. Assemat; E. Gendron; T. Morris; C. Robert; R. Myers; M. Cohen; N. Dipper; C. Evans; D. Gratadour; P. Jagourel; P. Laporte; D. Le Mignant; M. Puech; H. Schnetler; W. Taylor; F. Vidal; J.-G. Cuby; M. Lehnert; S. Morris; P. Parr-Burman

doi:10.1117/12.856586

28 July 2010 EAGLE MOAO system conceptual design and related technologies

G. Rousset, T. Fusco, F. Assemat, E. Gendron, T. Morris, C. Robert, R. Myers, M. Cohen, N. Dipper, C. Evans, D. Gratadour, P. Jagourel, P. Laporte, D. Le Mignant, M. Puech, H. Schnetler, W. Taylor, F. Vidal, J.-G. Cuby, M. Lehnert, S. Morris, P. Parr-Burman

Author Affiliations +

Proceedings Volume 7736, Adaptive Optics Systems II; 77360S (2010) https://doi.org/10.1117/12.856586
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

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.

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G. Rousset, T. Fusco, F. Assemat, E. Gendron, T. Morris, C. Robert, R. Myers, M. Cohen, N. Dipper, C. Evans, D. Gratadour, P. Jagourel, P. Laporte, D. Le Mignant, M. Puech, H. Schnetler, W. Taylor, F. Vidal, J.-G. Cuby, M. Lehnert, S. Morris, and P. Parr-Burman "EAGLE MOAO system conceptual design and related technologies", Proc. SPIE 7736, Adaptive Optics Systems II, 77360S (28 July 2010); https://doi.org/10.1117/12.856586

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