GHASP : An Hα survey of nearby Spirals and Irregulars.

Details GHASP : An Hα survey of nearby Spirals and Irregulars. GHASP : An Hα survey of nearby Spirals and Irregulars.

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sf2a.conf..413g&link_type=abstract

SF2A-2002: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 24-29, 2002, Eds.: F. Combes and D. Barret,

Astronomy and Astrophysics

Astrophysics

Scientific paper

GHASP (Gassendi Hα survey of SPirals) is a survey of Hα velocities in spiral and irregular galaxies. The observations began in 1998, with a scanning Fabry-Perot, at the 1.93m telescope of the Observatoire de Haute-Provence.By now, 134 galaxies have been observed and 110 have been reduced. For each galaxy, we obtain the Hα map, the 2D velocity field and the rotation curve. Most of the galaxies observed by GHASP have already been observed in the frame of WHISP project (survey led at Westerbork) which consists in mapping the HI distribution. The aim of this survey is to provide a local reference sample of 2D velocity fields for about 200 nearby spiral and irregular galaxies at Hα wavelength.

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