Confronting the numerical simulations of the VLT/MUSE instrument with the first real data

Aurélien Jarno; Roland Bacon; Arlette Pécontal-Rousset; Ole Streicher; Peter Weilbacher

doi:10.1117/12.926410

24 September 2012 Confronting the numerical simulations of the VLT/MUSE instrument with the first real data

Aurélien Jarno, Roland Bacon, Arlette Pécontal-Rousset, Ole Streicher, Peter Weilbacher

Proceedings Volume 8451, Software and Cyberinfrastructure for Astronomy II; 84512E (2012) https://doi.org/10.1117/12.926410
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

Citation Download Citation

Aurélien Jarno, Roland Bacon, Arlette Pécontal-Rousset, Ole Streicher, and Peter Weilbacher "Confronting the numerical simulations of the VLT/MUSE instrument with the first real data", Proc. SPIE 8451, Software and Cyberinfrastructure for Astronomy II, 84512E (24 September 2012); https://doi.org/10.1117/12.926410

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