The quasar epoch and the stellar ages of early-type galaxies
โ Scribed by A. Cattaneo; M. Bernardi
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 150 KB
- Volume
- 344
- Category
- Article
- ISSN
- 0035-8711
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We present Australian telescope compact array observations of the neutral-hydrogen gas in 42 early-type galaxies detected by the HIPASS survey. We confirm the detection of 18 galaxies with HI mass between a few times 10 9 and $10 10 M x and column density below a few times 10 20 cm ร2 . Most of the
## Abstract Dwarf galaxies are the numerically dominating population in the dense regions of the universe. Although they seem to be simple systems at first view, the stellar populations of dwarf elliptical galaxies (dEs) might be fairly complex. Nucleated dEs are of particular interest, since a num