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2008MNRAS.389.1111V - Mon. Not. R. Astron. Soc., 389, 1111-1126 (2008/September-3)
Simulations of the formation and evolution of isolated dwarf galaxies.
VALCKE S., DE RIJCKE S. and DEJONGHE H.
Abstract (from CDS):
The models' surface brightness profiles are well fitted by Sérsic profiles and the correlations between the models' Sérsic parameters and luminosity agree with the observations. We have also compared model predictions for the half-light radius Re, central velocity dispersion σc, broad-band colour B - v, metallicity [Z/Z☉] versus luminosity relations and for the location relative to the fundamental plane with the available data. The properties of the model DGs agree quite well with those of observed DGs. However, the properties of the most massive models deviate from those of observed galaxies. This most likely signals that galaxy mergers are starting to affect the galaxies' SFHs in this mass regime (M ≳ 109M☉).
We found that a good way to assess the soundness of models is provided by the combination of Re and σc. The demand that these are reproduced simultaneously places a stringent constraint on the spatial distribution of SF and on the shape and extent of the DM halo relative to that of the stars.
Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS
Journal keyword(s): methods: {em N}-body simulations - galaxies: dwarf - galaxies: evolution - galaxies: formation
Simbad objects: 3
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