Other
Scientific paper
Jun 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rmxac..17...77d&link_type=abstract
Galaxy Evolution: Theory & Observations (Eds. Vladimir Avila-Reese, Claudio Firmani, Carlos S. Frenk & Christine Allen) Revista
Other
Galaxies: Interactions, Galaxies: Intergalactic Medium
Scientific paper
Following internal processes, such as starburst or AGN driven outflows, or environmental effects like ram-pressure stripping or collisions, galaxies may loose large amounts of stellar and gaseous material. Whereas the impact of such stripping on galaxy evolution has been well studied, much less attention has been given to the fate of the expelled material in the intergalactic/intracluster medium. Part of it will fall back on their progenitors, eventually fueling new star-formation episodes; another part will be evaporated or dispersed; injected heavy elements will enrich the ICM. Finally a fraction of the gas lost by galaxies is recycled to form a new generation of galaxies, such as the Tidal Dwarf Galaxies discovered near numerous interacting systems. Using a set of multiwavelength datacubes, we are now able to detail the processes by which these galaxies form: from an instability in the HI clouds, via in situ formation of molecular gas and further onset of star formation.
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