| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 128, Number 1, February II 1998
|
|
|---|---|---|
| Page(s) | 75 - 109 | |
| DOI | https://doi.org/10.1051/aas:1998378 | |
| Published online | 15 February 1998 | |
Extended ionized gas in elliptical galaxies*
II. Velocity and monochromatic maps of 11 elliptical and lenticular galaxies
1
Observatoire de Marseille, 2 Place Le Verrier, F-13248 Marseille Cedex 04, France
2
Instituto Astronômico e Geofísico (IAG), Av. Miguel Stefano 4200 CEP: 04301-904 São Paulo, Brazil
3
Dept. de Physique, Université de Montréal CP 6128, Succ. Centre ville Montréal, P.GC Canada, H3C-3J7, Canada
Send offprint request to: H. Plana
Received:
11
March
1997
Accepted:
16
June
1997
For the last ten years faint ionized gas detection has been carried out for elliptical galaxies with success. The kinematics is essential to understand galaxy gas origin and fate. Here we present a sample of 11 elliptical and lenticular galaxies observed with the "Cigale" scanning Perot-Fabry instrument. For each galaxy monochromatic and velocity map of ionized gas is presented. Geometrical properties such as viewing angles and axis ratios are also derived from observations. Double gaseous components are found in 3 galaxies of our sample, implying an external origin for at least part of the observed gas.
Key words: galaxies: elliptical and lenticular, kinematics, ISM
© European Southern Observatory (ESO), 1998