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Proceedings Paper

Performance, results, and prospects of the visible spectrograph VEGA on CHARA
Author(s): Denis Mourard; Mounir Challouf; Roxanne Ligi; Philippe Bério; Jean-Michel Clausse; Jérôme Gerakis; Laurent Bourges; Nicolas Nardetto; Karine Perraut; Isabelle Tallon-Bosc; H. McAlister; T. ten Brummelaar; S. Ridgway; J. Sturmann; L. Sturmann; N. Turner; C. Farrington; P. J. Goldfinger
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Paper Abstract

In this paper, we review the current performance of the VEGA/CHARA visible spectrograph and make a review of the most recent astrophysical results. The science programs take benefit of the exceptional angular resolution, the unique spectral resolution and one of the main features of CHARA: Infrared and Visible parallel operation. We also discuss recent developments concerning the tools for the preparation of observations and important features of the data reduction software. A short discussion of the future developments will complete the presentation, directed towards new detectors and possible new beam combination scheme for improved sensitivity and imaging capabilities.

Paper Details

Date Published: 12 September 2012
PDF: 11 pages
Proc. SPIE 8445, Optical and Infrared Interferometry III, 84450K (12 September 2012); doi: 10.1117/12.925223
Show Author Affiliations
Denis Mourard, Lab. Lagrange, Univ. Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Mounir Challouf, Lab. Lagrange, Univ. Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Roxanne Ligi, Lab. Lagrange, Univ. Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Philippe Bério, Lab. Lagrange, Univ. Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Jean-Michel Clausse, Lab. Lagrange, Univ. Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Jérôme Gerakis, Lab. Lagrange, Univ. Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Laurent Bourges, Institut de Planétologie et d'Astrophysique de Grenoble (France)
Nicolas Nardetto, Lab. Lagrange, Univ. Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur (France)
Karine Perraut, UJF-Grenoble 1, CNRS-INSU, Institut de Planétologie et d'Astrophysique de Grenoble (France)
Isabelle Tallon-Bosc, CRAL, Observatoire de Lyon, CNRS, Univ. Lyon 1, Ecole Normale Supèrieure de Lyon (France)
H. McAlister, Georgia State Univ. (United States)
CHARA Array, Georgia State Univ. (United States)
T. ten Brummelaar, CHARA Array, Georgia State Univ. (United States)
S. Ridgway, National Optical Astronomy Observatory (United States)
J. Sturmann, CHARA Array, Georgia State Univ. (United States)
L. Sturmann, CHARA Array, Georgia State Univ. (United States)
N. Turner, CHARA Array, Georgia State Univ. (United States)
C. Farrington, CHARA Array, Georgia State Univ. (United States)
P. J. Goldfinger, CHARA Array, Georgia State Univ. (United States)


Published in SPIE Proceedings Vol. 8445:
Optical and Infrared Interferometry III
Françoise Delplancke; Jayadev K. Rajagopal; Fabien Malbet, Editor(s)

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