Are the halo occupation predictions consistent with large-scale galaxy clustering?

  title={Are the halo occupation predictions consistent with large-scale galaxy clustering?},
  author={Arnau Pujol and Enrique Gazta{\~n}aga},
  journal={Monthly Notices of the Royal Astronomical Society},
We study how well we can reconstruct the 2-point clustering of galaxies on linear scales, as a function of mass and luminosity, using the halo occupation distribution (HOD) in several semi-analytical models (SAMs) of galaxy formation from the Millennium Simulation. We find that HOD with Friends of Friends groups can reproduce galaxy clustering better than gravitationally bound haloes. This indicates that Friends of Friends groups are more directly related to the clustering of these regions than… Expand
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