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Proceedings Paper

Confronting the numerical simulations of the VLT/MUSE instrument with the first real data
Author(s): Aurélien Jarno; Roland Bacon; Arlette Pécontal-Rousset; Ole Streicher; Peter Weilbacher
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Paper Abstract

The Multi Unit Spectroscopic Explorer (MUSE) instrument is a second-generation integral-field spectrograph in development for the Very Large Telescope (VLT), operating in the visible and near IR wavelength range (465-930 nm). Given the complexity of MUSE we have developed an instrument numerical simulator, which includes the whole chain of acquisition from the atmosphere down to the telescope and including the detectors, and taking into account both optical aberrations and diffraction effects, by propagating a wavefront through the instrument, according to the Fourier optics concept. This simulator is used to produce simulated exposures, in order to develop the data reduction software and to develop and validate the test procedures of the assembly, integration and tests phase. The MUSE instrument is currently being integrated in CRAL, and first real exposures have been taken. This paper compares and analyses the differences between the real data and the numerical simulations, in order to improve the instrument simulator and make it more realistic.

Paper Details

Date Published: 24 September 2012
PDF: 8 pages
Proc. SPIE 8451, Software and Cyberinfrastructure for Astronomy II, 84512E (24 September 2012); doi: 10.1117/12.926410
Show Author Affiliations
Aurélien Jarno, Ctr. de Recherche Astrophysique de Lyon, CNRS, Univ. de Lyon (France)
Roland Bacon, Ctr. de Recherche Astrophysique de Lyon, CNRS, Univ. de Lyon (France)
Arlette Pécontal-Rousset, Ctr. de Recherche Astrophysique de Lyon, CNRS, Univ. de Lyon (France)
Ole Streicher, Leibniz-Institut für Astrophysik (Germany)
Peter Weilbacher, Leibniz-Institut für Astrophysik (Germany)

Published in SPIE Proceedings Vol. 8451:
Software and Cyberinfrastructure for Astronomy II
Nicole M. Radziwill; Gianluca Chiozzi, Editor(s)

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