MUSE instrument global performance analysis

M. Loupias; R. Bacon; P. Caillier; A. Fleischmann; A. Jarno; A. Kelz; J. Kosmalski; F. Laurent; M. Le Floch; J. L. Lizon; A. Manescau; H. Nicklas; L. Parès; A. Pécontal; R. Reiss; A. Remillieux; E. Renault; M. M. Roth; G. Rupprecht; R. Stuik

doi:10.1117/12.857212

4 August 2010 MUSE instrument global performance analysis

M. Loupias, R. Bacon, P. Caillier, A. Fleischmann, A. Jarno, A. Kelz, J. Kosmalski, F. Laurent, M. Le Floch, J. L. Lizon, A. Manescau, H. Nicklas, L. Parès, A. Pécontal, R. Reiss, A. Remillieux, E. Renault, M. M. Roth, G. Rupprecht, R. Stuik

Author Affiliations +

Proceedings Volume 7738, Modeling, Systems Engineering, and Project Management for Astronomy IV; 773804 (2010) https://doi.org/10.1117/12.857212
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

MUSE (Multi Unit Spectroscopic Explorer) is a second generation instrument developed for ESO (European Southern Observatory) and will be assembled to the VLT (Very Large Telescope) in 2012. The MUSE instrument can simultaneously record 90.000 spectra in the visible wavelength range (465-930nm), across a 1*1arcmin² field of view, thanks to 24 identical Integral Field Units (IFU). A collaboration of 7 institutes has successfully passed the Final Design Review and is currently working on the first sub-assemblies. The sharing of performances has been based on 5 main functional sub-systems. The Fore Optics sub-system derotates and anamorphoses the VLT Nasmyth focal plane image, the Splitting and Relay Optics associated with the Main Structure are feeding each IFU with 1/24^th of the field of view. Each IFU is composed of a 3D function insured by an image slicer system and a spectrograph, and a detection function by a 4k*4k CCD cooled down to 163°K. The 5^th function is the calibration and data reduction of the instrument. This article depicts the breakdown of performances between these sub-systems (throughput, image quality...), and underlines the constraining parameters of the interfaces either internal or with the VLT. The validation of all these requirements is a critical task started a few months ago which requires a clear traceability and performances analysis.

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M. Loupias, R. Bacon, P. Caillier, A. Fleischmann, A. Jarno, A. Kelz, J. Kosmalski, F. Laurent, M. Le Floch, J. L. Lizon, A. Manescau, H. Nicklas, L. Parès, A. Pécontal, R. Reiss, A. Remillieux, E. Renault, M. M. Roth, G. Rupprecht, and R. Stuik "MUSE instrument global performance analysis", Proc. SPIE 7738, Modeling, Systems Engineering, and Project Management for Astronomy IV, 773804 (4 August 2010); https://doi.org/10.1117/12.857212

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