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Proceedings Paper

GHαFaS: Galaxy Hα Fabry-Perot system for the WHT
Author(s): Claude Carignan; Olivier Hernandez; Jean-Luc Gach; Philippe Balard; Marie-Maude De Denus-Baillargeon; Kambiz Fathi; John Beckman; Jean Koulidiati
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Paper Abstract

GHαFaS is a new Fabry-Perot system available at the William Herschel Telescope. It was mounted, for the first time, at the Nasmyth focus of the 4.2 m WHT in La Palma in 2007 July. With a spectral resolution of the order R~15000 and a seeing limited spatial resolution, GHαFaS provides a new look at the Hα-emitting gas over a 4 arcminutes circular field in the nearby universe. Many types of objects can be observed with a scanning Fabry-Perot system on a 4.2 m class telescope such as galaxies, HII regions, planetary nebulae, supernova remnants outflows from stars and the diffuse interstellar medium. Astronomers from the Laboratoire d'Astrophysique Experimentale (LAE) in Montreal, the Laboratoire d'Astrophysique de Marseille (LAM), and the Instituto de Astrofisica de Canarias (IAC), have inaugurated GHαFaS by studying in detail the dynamics of nearby spiral galaxies. A robust set of tools for reducing and analyzing the data cubes obtained with GHαFaS has also been developed.

Paper Details

Date Published: 10 July 2008
PDF: 12 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70145N (10 July 2008); doi: 10.1117/12.790616
Show Author Affiliations
Claude Carignan, Lab. d'Astrophysique Expérimentale, Univ. de Montréal (Canada)
Lab. d'Astrophysique de Marseille, Univ. de Provence (France)
Observatoire d’Astrophysique de l'Univ. de Ouagadougou (Burkina Faso)
Olivier Hernandez, Lab. d'Astrophysique Expérimentale, Univ. de Montréal (Canada)
Jean-Luc Gach, Lab. d'Astrophysique de Marseille, Univ. de Provence (France)
Philippe Balard, Lab. d'Astrophysique de Marseille, Univ. de Provence (France)
Marie-Maude De Denus-Baillargeon, Lab. d'Astrophysique Expérimentale, Univ. de Montréal (Canada)
Institut Fresnel, CNRS, Univ. Aix Marseille (France)
Kambiz Fathi, Stockholm Observatory, AlbaNova Univ. Ctr. (Sweden)
Instituto de Astrofísica de Canarias (Spain)
John Beckman, Instituto de Astrofísica de Canarias (Spain)
Jean Koulidiati, Observatoire d’Astrophysique de l'Univ. de Ouagadougou (Burkina Faso)


Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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