Groups of dwarf galaxies in the Local supercluster
arXiv:1010.1563 · doi:10.1051/eas/1148066
Abstract
We present a project on study of groups composed of dwarf galaxies only. We selected such structures using HyperLEDA and NED databases with visual inspection on SDSS images and on digital copy of POSS. The groups are characterized by size of few tens of kpc and line-of-sight velocity dispersion about 18 km/s. Our groups similar to associations of nearby dwarfs from Tully et al. (2006). This specific population of multiple dwarf galaxies such as IZw18 may contain significant amount of dark matter. It is very likely that we see them at the stage just before merging of its components.
6 pages, 4 figures; the proceedings of the conference "A Universe of dwarf galaxies" (Lyon, June 14-18, 2010)
References in corpus (9)
- The Seventh Data Release of the Sloan Digital Sky Survey
- The Arecibo Legacy Fast ALFA Survey: I. Science Goals, Survey Design and Strategy
- The 6dF Galaxy Survey: Samples, Observational Techniques and the First Data Release
- The 1000 Brightest HIPASS Galaxies: HI Mass Function and Omega_HI
- Associations of Dwarf Galaxies
- Binary Galaxies in the Local Supercluster and Its Neighborhood
- Galaxies and Groups in the Local Supercluster
- HI studies of eXtremely Metal Deficient galaxies - II: GMRT observations of SBS 1129+576
- Optical Identifications of 230 HIPASS Radio Sources