Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2010-02-04
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
Accepted the 28/01/10
Scientific paper
The chemodynamical evolution of spherical multi-component self-gravitating models for isolated dwarf galaxies is studied. We compare their evolution with and without feedback effects from star formation processes. We find that initially cuspy dark matter profiles flatten with time as a result of star formation, without any special tuning conditions. Thus the seemingly flattened profiles found in many dwarfs do not contradict the cuspy profiles predicted by cosmological models. We also calculate the chemical evolution of stars and gas, to permit comparisons with observational data.
Berczik Peter
Dehnen Walter
Grebel Eva Katharina
Pasetto Stefano
Spurzem Rainer
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