2012

The satellites of the Milky Way - Insights from semi-analytic modelling in a LambdaCDM cosmology

Starkenburg, Else, Helmi, Amina, De Lucia, Gabriella et al.

Understand

We combine the six high-resolution Aquarius dark matter simulations with a semi-analytic galaxy formation model to investigate the properties of the satellites of Milky Way-like galaxies.

We find good correspondence with the observed luminosity function, luminosity-metallicity relation and radial distribution of the Milky Way satellites.
The star formation histories of the dwarf galaxies in our model vary widely, in accordance with what is seen observationally.
Ram-pressure stripping of hot gas from the satellites leaves a clear imprint of the environment on the characteristics of a dwarf galaxy.

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