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Proceedings Paper

The VIRMOS very wide integral field unit for the VLT: integration and performances
Author(s): Christophe Bonneville; Eric Prieto; Oliver LeFevre; Michel Saisse; Clothaire Voet; Alessandra Zanichelli; Bianca Garilli; Gianpaolo Vettolani; Dario Maccagni; Dario Mancini; Jean Pierre Picat
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Paper Abstract

We present the integration and performances of the VLT-VIMOS Integral Field spectroscopy Unit. This unit allows to observe a very large 54x54 arcsec2 field on the side of the VIMOS instrument multi-object field in the range 0.37 - 1μm. This unit contains 6400 sets of micro-lenses - fibers - micro-lenses, producing the equivalent of a 72 arcmin x 0.67 arcsec slit projected on the sky. Two spatial resolutions (0.67 arcsec and 0.33 arcsec) are offered, coupled with the low and high spectral resolution of VIMOS. After reviewing the design philosophy, we are presenting the main steps and challenges encountered during integration. Calibration tests conducted in France and at the Paranal observatory as well as the data reduction software that has been developed for IFU are discussed. The first sky images of this very wide Integral Field Unit have been obtained in the early 2002 commissioning periods at VLT.

Paper Details

Date Published: 7 March 2003
PDF: 12 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.460961
Show Author Affiliations
Christophe Bonneville, Lab. d'Astrophysique de Marseille (France)
Eric Prieto, Lab. d'Astrophysique de Marseille (France)
Oliver LeFevre, Lab. d'Astrophysique de Marseille (France)
Michel Saisse, Lab. d'Astrophysique de Marseille (France)
Clothaire Voet, Lab. d'Astrophysique de Marseille (France)
Alessandra Zanichelli, Istituto di Radio Astronomia (Italy)
Bianca Garilli, Istituto di Fisica Cosmica e Tecnologie Relative (Italy)
Gianpaolo Vettolani, Istituto di Radio Astronomia (Italy)
Dario Maccagni, Istituto di Fisica Cosmica e Tecnologie Relative (Italy)
Dario Mancini, Osservatorio Astronomico di Capodimonte (Italy)
Jean Pierre Picat, Observatoire Midi-Pyrenees (France)


Published in SPIE Proceedings Vol. 4841:
Instrument Design and Performance for Optical/Infrared Ground-based Telescopes
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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