Optical solutions for the multi-IFU instrument EAGLE for the European ELT

Martyn Wells; Sébastien Vives; Eric Prieto; Philippe Laporte; Peter R. Hastings; Chris Evans; Robert Content; Fanny Chemla

doi:10.1117/12.789860

9 July 2008 Optical solutions for the multi-IFU instrument EAGLE for the European ELT

Martyn Wells, Sébastien Vives, Eric Prieto, Philippe Laporte, Peter R. Hastings, Chris Evans, Robert Content, Fanny Chemla

Author Affiliations +

Proceedings Volume 7014, Ground-based and Airborne Instrumentation for Astronomy II; 70141L (2008) https://doi.org/10.1117/12.789860
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

This paper summarizes the different optical concepts developed for the EAGLE Phase A design. EAGLE will be an MOAO (Multi-object AO) IFU spectrometer operating between 0.8 and 2.5μm. The EAGLE consortium have developed different concepts for the challenging problem of acquiring more than twenty objects in the patrol field of view (FOV), correcting the wavefront along the line of sight to each of the objects and analyzing each object spatially and spectrally with an Integral Field Spectrograph. The target selection FOV will be ≥20 square arcmin and the individual target FOV can be selected to be either 1.65×1.65arcsec or 1.65×3.3arcsec. They will be sampled spatially at 75mas and with spectral resolutions of 4000 and 10000. Optical designs for target acquisition systems, integral-field unit, and spectrographs have been developed. These will be compared and the expected performance will be described in terms of the number of targets, overall patrol field of view, individual field of view, throughput, spectral resolving power and image quality.

Citation Download Citation

Martyn Wells, Sébastien Vives, Eric Prieto, Philippe Laporte, Peter R. Hastings, Chris Evans, Robert Content, and Fanny Chemla "Optical solutions for the multi-IFU instrument EAGLE for the European ELT", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70141L (9 July 2008); https://doi.org/10.1117/12.789860

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available