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Proceedings Paper

The EAGLE instrument for the E-ELT: developments since delivery of Phase A
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Paper Abstract

The EAGLE instrument is a Multi-Object Adaptive Optics (MOAO) fed, multiple Integral Field Spectrograph (IFS), working in the Near Infra-Red (NIR), on the European Extremely Large Telescope (E-ELT). A Phase A design study was delivered to the European Southern Observatory (ESO) leading to a successful review in October 2009. Since that time there have been a number of developments, which we summarize here. Some of these developments are also described in more detail in other submissions at this meeting. The science case for the instrument, while broad, highlighted in particular: understanding the stellar populations of galaxies in the nearby universe, the observation of the evolution of galaxies during the period of rapid stellar build-up between redshifts of 2-5, and the search for 'first light' in the universe at redshifts beyond 7. In the last 2 years substantial progress has been made in these areas, and we have updated our science case to show that EAGLE is still an essential facility for the E-ELT. This in turn allowed us to revisit the science requirements for the instrument, confirming most of the original decisions, but with one modification. The original location considered for the instrument (a gravity invariant focal station) is no longer in the E-ELT Construction Proposal, and so we have performed some preliminary analyses to show that the instrument can be simply adapted to work at the E-ELT Nasmyth platform. Since the delivery of the Phase A documentation, MOAO has been demonstrated on-sky by the CANARY experiment at the William Herschel Telescope.

Paper Details

Date Published: 24 September 2012
PDF: 10 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84461J (24 September 2012); doi: 10.1117/12.925889
Show Author Affiliations
Simon L. Morris, Univ. of Durham (United Kingdom)
Jean-Gabriel Cuby, Lab. d'Astrophysique de Marseille, CNRS, Aix Marseille Univ. (France)
Marc Dubbeldam, Univ. of Durham (United Kingdom)
Christopher Evans, UK Astronomy Technology Ctr. (United Kingdom)
Thierry Fusco, ONERA (France)
Pascal Jagourel, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Richard M. Myers, Durham Univ. (United Kingdom)
Phil Parr-Burman, UK Astronomy Technology Ctr. (United Kingdom)
Gerard Rousset, LESIA, Observatoire de Paris, CNRS (France)
Hermine Schnetler, UK Astronomy Technology Ctr. (United Kingdom)

Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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