Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-04-18
Mon.Not.Roy.Astron.Soc. 360 (2005) 1201-1230
Astronomy and Astrophysics
Astrophysics
34 pages, 25 figures, accepted for publication in MNRAS. To obtain a higher resolution version, go to ftp://ftp.astro.umontr
Scientific paper
10.1111/j.1365-2966.2005.09125.x
The Halpha gas kinematics of twenty-one representative barred spiral galaxies belonging to the BHaBAR sample is presented. The galaxies were observed with FaNTOmM, a Fabry-Perot integral-field spectrometer, on three different telescopes. The 3D data cubes were processed through a robust pipeline with the aim of providing the most homogeneous and accurate dataset possible useful for further analysis. The data cubes were spatially binned to a constant signal-to-noise ratio, typically around 7. Maps of the monochromatic Halpha emission line and of the velocity field were generated and the kinematical parameters were derived for the whole sample using tilted-ring models. The photometrical and kinematical parameters (position angle of the major axis, inclination, systemic velocity and kinematical centre) are in relative good agreement, except maybe for the later-type spirals.
Amram Ph.
Carignan Claude
Chemin Laurent
Daigle Olivier
Hernandez Olga
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