The Chemical and Dynamical Evolution of Isolated Dwarf Galaxies

Details The Chemical and Dynamical Evolution of Isolated Dwarf Galaxies The Chemical and Dynamical Evolution of Isolated Dwarf Galaxies

2011-07-22

arxiv.org/abs/1107.4538v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

To appear in the proceedings of the JENAM 2010 Symposium "Dwarf Galaxies: Keys to Galaxy Formation and Evolution" (Lisbon, 9-1

Scientific paper

Using a suite of simulations (Governato et al. 2010) which successfully produce bulgeless (dwarf) disk galaxies, we provide an analysis of their associated cold interstellar media (ISM) and stellar chemical abundance patterns. A preliminary comparison with observations is undertaken, in order to assess whether the properties of the cold gas and chemistry of the stellar components are recovered successfully. To this end, we have extracted the radial and vertical gas density profiles, neutral hydrogen velocity dispersion, and the power spectrum of structure within the ISM. We complement this analysis of the cold gas with a brief examination of the simulations' metallicity distribution functions and the distribution of alpha-elements-to-iron.

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