HI Recycling: Formation of Tidal Dwarf Galaxies
Loading...
Date
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
Galactic collisions trigger a number of phenomena, such as transportation inward of gas from distances of up to kiloparsecs from the center of a galaxy to the nuclear region, fuelling a central starburst or nuclear activity. The inverse process, the ejection of material into the intergalactic medium by tidal forces, is another important aspect and can be studied especially well through detailed HI observations of interacting systems which have shown that a large fraction of the gaseous component of colliding galaxies can be expelled. Part of this tidal debris might fall back, be dispersed throughout the intergalactic medium or recondense to form a new generation of galaxies: the so-called tidal dwarf galaxies. The latter are nearby examples of galaxies in formation. The properties of these recycled objects are reviewed here and different ways to identify them are reviewed.
4 pages, 2 figures, to appear in ASP Conference Series, "Gas & Galaxy Evolution" J.E. Hibbard, M.P. Rupen and J.H. van Gorkom, eds. also available at: http://alpha.uni-sw.gwdg.de/~paduc/articles/articles.html
4 pages, 2 figures, to appear in ASP Conference Series, "Gas & Galaxy Evolution" J.E. Hibbard, M.P. Rupen and J.H. van Gorkom, eds. also available at: http://alpha.uni-sw.gwdg.de/~paduc/articles/articles.html