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Proceedings Paper

VSI: a milli-arcsec spectro-imager for the VLTI
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Paper Abstract

VLTi Spectro-Imager (VSI) is a proposition for a second generation VLTI instrument which is aimed at providing the ESO community with the capability of performing image synthesis at milli-arcsecond angular resolution. VSI provides the VLTI with an instrument able to combine 4 telescopes in a baseline version and optionally up to 6 telescopes in the near-infrared spectral domain with moderate to high spectral resolution. The instrument contains its own fringe tracker in order to relax the constraints onto the VLTI infrastructure. VSI will do imaging at the milli-arcsecond scale with spectral resolution of: a) the close environments of young stars probing the initial conditions for planet formation; b) the surfaces of stars; c) the environment of evolved stars, stellar remnants and stellar winds, and d) the central region of active galactic nuclei and supermassive black holes. The science cases allowed us to specify the astrophysical requirements of the instrument and to define the necessary studies of the science group for phase A.

Paper Details

Date Published: 27 June 2006
PDF: 12 pages
Proc. SPIE 6268, Advances in Stellar Interferometry, 62680Y (27 June 2006); doi: 10.1117/12.673098
Show Author Affiliations
F. Malbet, Lab. d'Astrophysique de Grenoble (France)
P. Y. Kern, Lab. d'Astrophysique de Grenoble (France)
J.-P. Berger, Lab. d'Astrophysique de Grenoble (France)
L. Jocou, Lab. d'Astrophysique de Grenoble (France)
P. Garcia, Ctr. de Astrofísica da Univ. do Porto (Portugal)
D. Buscher, Cavendish Lab./Univ. of Cambridge (United Kingdom)
K. Rousselet-Perraut, Lab. d'Astrophysique de Grenoble (France)
G. Weigelt, Max-Planck-Institut für Radioastronomie (Germany)
M. Gai, Istituto Nazionale di Astrofisica, INAF (Italy)
J. Surdej, Institut d'Astrophysique et de Géophysique de Liège (Belgium)
J. Hron, Institut für Astronomie/Univ. Wien (Austria)
R. Neuhäuser, AIU Jena (Germany)
E. Le Coarer, Lab. d'Astrophysique de Grenoble (France)
P. R. Labeye, CEA-LETI (France)
J. Le Bouquin, Lab. d'Astrophysique de Grenoble (France)
M. Benisty, Lab. d'Astrophysique de Grenoble (France)
E. Herwats, Lab. d'Astrophysique de Grenoble (France)

Published in SPIE Proceedings Vol. 6268:
Advances in Stellar Interferometry
John D. Monnier; Markus Schöller; William C. Danchi, Editor(s)

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