## Abstract The study of (dwarf) galaxies in nearby groups is one among the most powerful tools that can be used to investigate galaxy evolution, chemical enrichment and environmental effects on these objects. The Centaurus A group (at a distance of βΌ4 Mpc) is dynamically evolved and contains about
Testing of the dwarf galaxy content and the evolutionary status of nearby groups of galaxies
β Scribed by J. Vennik; U. Hopp
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 131 KB
- Volume
- 330
- Category
- Article
- ISSN
- 0004-6337
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
We carried out visual and parametric searches for dwarf galaxies in five loose groups of galaxies. Followβup spectroscopy with the HET has shown a 50% success rate of morphological selection. The evolutionary status of the studied groups differs: while the NGC 6962 group has a partially relaxed core, surrounded by an infall region, the NGC 5005/5033 group and the IC 65 group, which consist only of lateβtype galaxies, are probably still assembling (Β© 2009 WILEYβVCH Verlag GmbH & Co. KGaA, Weinheim)
π SIMILAR VOLUMES
## Abstract We examine multiple facets of the evolution of the gas content of galaxy groups. Complementing building evidence that a tremendous amount of galaxy transformation takes place in the group environment we find evidence of similar transformation of the gas content. In dynamically young gro
## Abstract We present models of the formation and evolution of isolated dwarf galaxies. The models follow the evolution of an initially homogeneous gas cloud collapsing in a preβexisting darkβmatter halo. These simplified initial conditions are supported by the merger trees of isolated dwarf galax
## Abstract A sample of earlyβtype dwarf galaxies of the Virgo cluster extracted from the Sloan Digital Sky Survey is analyzed to search for two different populations: galaxies which were formed in the cluster and galaxies which were accreted at a later stage and which were stripped during this pro
## Abstract We study the effects of clouds on the dynamical and chemical evolution of gasβrich dwarf galaxies, in particular focusing on two model galaxies similar to IZw18 and NGC 1569. We consider both scenarios, clouds put at the beginning of the simulation and continuously created infalling one