The inner structure of early-type galaxies in the Illustris simulation

  title={The inner structure of early-type galaxies in the Illustris simulation},
  author={Dandan Xu and Volker Springel and Dominique Sluse and P. Christian Schneider and Alessandro Sonnenfeld and Dylan Nelson and Mark Vogelsberger and Lars Hernquist},
  journal={Monthly Notices of the Royal Astronomical Society},
Early-type galaxies provide unique tests for the predictions of the cold dark matter cosmology and the baryonic physics assumptions entering models for galaxy formation. In this work, we use the Illustris simulation to study correlations of three main properties of early-type galaxies, namely, the stellar orbital anisotropies, the central dark matter fractions and the central radial density slopes, as well as their redshift evolution since $z=1.0$. We find that lower-mass galaxies or galaxies… 
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