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Proceedings Paper

MUSE optomechanical design and performance
Author(s): Francois Henault; Roland Bacon; Hans Dekker; Bernard Delabre; Slimane Djidel; Jean-Pierre Dubois; Norbert Hubin; Blandine Lantz; Wing Lau; Miska Le Louarn; Ian J. Lewis; Jean-Louis Lizon; James Lynn; Luca Pasquini; Roland Reiss; Martin M. Roth
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Paper Abstract

The MUSE (Multi Unit Spectroscopic Explorer) instrument is a second-generation integral-field spectrograph candidate for the VLT, operating in the visible and near IR wavelength range (0.465 - 0.93 μm). It is combining a large 1' x 1' Field of View with a spectral resolution of 3000 and a spatial resolution of 0.2" coupled to a sophisticated ground-layer Adaptive Optics (AO) system. After a brief summary of the major instrumental requirements, we will focus on the opto-mechanical design of MUSE, including core subsystems such as the Fore-Optics, the Image Slicers and the Spectrographs, the Structure and the Calibration Unit. The most creative trends of the instrument will be underlined, such as the specific choices adopted to reduce the costs, weight and volume of the Slicer and Spectrograph units, that need to be manufactured and installed on the VLT Nasmyth platform into twenty-four replicas. Finally, a realistic estimate of the expected performance (in both throughput and image quality), and the future development program for the forthcoming detailed design phase will be presented.

Paper Details

Date Published: 30 September 2004
PDF: 12 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.554096
Show Author Affiliations
Francois Henault, Observatoire de Lyon (France)
Roland Bacon, Observatoire de Lyon (France)
Hans Dekker, European Southern Observatory (Germany)
Bernard Delabre, European Southern Observatory (Germany)
Slimane Djidel, Observatoire de Lyon (France)
Jean-Pierre Dubois, Observatoire de Lyon (France)
Norbert Hubin, European Southern Observatory (Germany)
Blandine Lantz, Observatoire de Lyon (France)
Wing Lau, Univ. of Oxford (United Kingdom)
Miska Le Louarn, European Southern Observatory (Germany)
Ian J. Lewis, Univ. of Oxford (United Kingdom)
Jean-Louis Lizon, European Southern Observatory (Germany)
James Lynn, Univ. of Oxford (United Kingdom)
Luca Pasquini, European Southern Observatory (Germany)
Roland Reiss, European Southern Observatory (Germany)
Martin M. Roth, Astrophysikalisches Institut Potsdam (Germany)

Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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