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Proceedings Paper

Calibration issues for MUSE
Author(s): Andreas Kelz; Martin Roth; Svend Bauer; Joris Gerssen; Thomas Hahn; Peter Weilbacher; Uwe Laux; Magali Loupias; Johan Kosmalski; Richard McDermid; Roland Bacon
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Paper Abstract

The Multi-Unit Spectroscopic Explorer (MUSE) is an integral-field spectrograph for the VLT for the next decade. Using an innovative field-splitting and slicing design, combined with an assembly of 24 spectrographs, MUSE will provide some 90,000 spectra in one exposure, which cover a simultaneous spectral range from 465 to 930nm. The design and manufacture of the Calibration Unit, the alignment tests of the Spectrograph and Detector sub-systems, and the development of the Data Reduction Software for MUSE are work-packages under the responsibility of the AIP, who is a partner in a European-wide consortium of 6 institutes and ESO, that is led by the Centre de Recherche Astronomique de Lyon. MUSE will be operated and therefore has to be calibrated in a variety of modes, which include seeing-limited and AO-assisted operations, providing a wide and narrow-field-of-view. MUSE aims to obtain unprecedented ultra-deep 3D-spectroscopic exposures, involving integration times of the order of 80 hours at the VLT. To achieve the corresponding science goals, instrumental stability, accurate calibration and adequate data reduction tools are needed. The paper describes the status at PDR of the AIP related work-packages, in particular with respect to the spatial, spectral, image quality, and geometrical calibration and related data reduction aspects.

Paper Details

Date Published: 11 July 2008
PDF: 12 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 701458 (11 July 2008); doi: 10.1117/12.789407
Show Author Affiliations
Andreas Kelz, Astrophysikalisches Institut Potsdam (Germany)
Martin Roth, Astrophysikalisches Institut Potsdam (Germany)
Svend Bauer, Astrophysikalisches Institut Potsdam (Germany)
Joris Gerssen, Astrophysikalisches Institut Potsdam (Germany)
Thomas Hahn, Astrophysikalisches Institut Potsdam (Germany)
Peter Weilbacher, Astrophysikalisches Institut Potsdam (Germany)
Uwe Laux, Thüringer Landessternwarte Tautenburg (Germany)
Magali Loupias, Ctr. de Recherche Astronomique de Lyon (France)
Johan Kosmalski, Ctr. de Recherche Astronomique de Lyon (France)
Richard McDermid, Univ. Leiden (Netherlands)
Roland Bacon, Ctr. de Recherche Astronomique de Lyon (France)


Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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