
Proceedings Paper
MUSE: feeding and mounting 24 spectrographsFormat | Member Price | Non-Member Price |
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Paper Abstract
The Multi Unit Spectroscopic Explorer MUSE is an integral field device containing 24 spectrographs at the Nasmyth
focus of the VLT unit telescope. The total field size of 1'x1' needs to be split and separated into 24 sub-fields which are
relayed along a central structure into the entrance aperture of the individual spectrographs. The realization of the optics
for field splitting and separation as well as the relay optics to direct the light of the individual fields to the spectrographs
is described here. A very tight link exists between the relay optics system layout and the mechanical arrangement of the
spectrographs in the common central structure. A compact mounting is essential due to the restricted space for such a
large instrument even on the VLT Nasmyth platform. A suitable arrangement of vertical and horizontal stacking of the
spectrographs was found enabling their feeding from the unobstructed front side of the instrumental structure. The
central instrument mount was designed as a stiff structure absorbing print-through effects due to thermal mismatch with
the telescope platform but rigid enough to withstand earthquakes.
Paper Details
Date Published: 11 July 2008
PDF: 8 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 701459 (11 July 2008); doi: 10.1117/12.789188
Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)
PDF: 8 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 701459 (11 July 2008); doi: 10.1117/12.789188
Show Author Affiliations
Harald Nicklas, Institut für Astrophysik, Georg-August-Univ. Göttingen (Germany)
Walter Seifert, Zentrum für Astronomie, Landessternwarte, Königstuhl (Germany)
Wenli Xu, Wenli Xu, Optical System Engineering (Germany)
Walter Seifert, Zentrum für Astronomie, Landessternwarte, Königstuhl (Germany)
Wenli Xu, Wenli Xu, Optical System Engineering (Germany)
Denni Hofmann, Institut für Astrophysik, Georg-August-Univ. Göttingen (Germany)
Christof Köhler, Institut für Astrophysik, Georg-August-Univ. Göttingen (Germany)
Magali Loupias, Observatoire de Lyon (France)
Christof Köhler, Institut für Astrophysik, Georg-August-Univ. Göttingen (Germany)
Magali Loupias, Observatoire 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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