EAS Publications Series
Volume 24, 2007CRAL-2006. Chemodynamics: From First Stars to Local Galaxies
|Page(s)||229 - 243|
|Published online||21 April 2007|
E. Emsellem, H. Wozniak, G. Massacrier, J.-F. Gonzalez, J. Devriendt and N. Champavert (eds)
EAS Publications Series, 24 (2007) 229-243
Feedback Processes at Cosmic Dawn
SISSA/ISAS, via Beirut 4, 34014 Trieste, Italy
Feedback processes are now realized to hold the key to our understanding of galaxy formation and evolution, particularly during the early epochs that we commonly dub as the Cosmic Dawn. We propose and discuss a classification in which three broad feedback classes (radiative, chemical and mechanical) can be identified. We also discuss the underlying physics for each of these feedbacks and point out their importance in different cosmological contexts. Finally, the link between mechanical feedback and the heavy element transport is explored with the aim of understanding the cosmic metal budget and the enrichment history of the intergalactic medium.
© EAS, EDP Sciences, 2007
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