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Proceedings Paper

Characterication in the laboratory of VISIR, the mid-infrared imager and spectrometer for the VLT
Author(s): Pierre-Olivier Lagage; Jan-Willem Pel; Arnaud Claret; Sieds Damstra; Didier Dubreuil; Gilles A. Durand; Eddy Elswijk; Philippe Galdemard; Arie N. de Jong; Gabby Kroes; Charles Lyraud; Eric Pantin; Johan Pragt; Yvon Rio; Anton Schoenmaker; Martial Authier; Jean Belorgey; Jean-Francois Gournay; Michel Lortholary; Yves Lussignol; Christian Veyssiere
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Paper Abstract

In this paper, we present the status of VISIR, the mid-infrared instrument to be installed in 2003 at the Cassegrain focus of MELIPAL, one of the four 8-meter telescopes of the European Very Large Telescope. This cryogenic instrument, optimized for diffraction-limited performance in both mid-infrared atmospheric windows (N and Q band), combines imaging capabilities over a field up to about 1x1 arcmin2, and long-slit (0.5 arcmin) grating spectroscopy with various spectral resolutions up to R=25000 at 10 μm and 12500 at 20 μm. The contract to design and build VISIR was signed in November 1996 between the European Southern Observatory (ESO) and a French-Dutch consortium of institutes led by Service d'Astrophysique of Commissariat l'Energie Atomique (CEA). A key step in the project has been passed in December 2001, with the first infrared images in the laboratory and in April 2002 with the first infrared spectra in the laboratory. We present the results of the laboratory tests of the instrument, which is scheduled to be shipped to Paranal at the end of 2002.

Paper Details

Date Published: 7 March 2003
PDF: 9 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.461101
Show Author Affiliations
Pierre-Olivier Lagage, CEA Saclay (France)
Jan-Willem Pel, Kapteyn Institute/Groningen Univ. (Netherlands)
ASTRON (Netherlands)
Arnaud Claret, CEA Saclay (France)
Sieds Damstra, ASTRON (Netherlands)
Didier Dubreuil, CEA Saclay (France)
Gilles A. Durand, CEA Saclay (France)
Eddy Elswijk, ASTRON (Netherlands)
Philippe Galdemard, CEA Saclay (France)
Arie N. de Jong, ASTRON (Netherlands)
Gabby Kroes, ASTRON (Netherlands)
Charles Lyraud, CEA Saclay (France)
Eric Pantin, CEA Saclay (France)
Johan Pragt, ASTRON (Netherlands)
Yvon Rio, CEA Saclay (France)
Anton Schoenmaker, ASTRON (Netherlands)
Martial Authier, CEA Saclay (France)
Jean Belorgey, CEA Saclay (France)
Jean-Francois Gournay, CEA Saclay (France)
Michel Lortholary, CEA Saclay (France)
Yves Lussignol, CEA Saclay (France)
Christian Veyssiere, CEA Saclay (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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