Virial Scaling of Massive Dark Matter Halos: Why Clusters Prefer a High Normalization Cosmology
Virial Scaling of Massive Dark Matter Halos: Why Clusters Prefer a High Normalization Cosmology
We present a precise estimate of the bulk virial scaling relation of halos formed via hierarchical clustering in an ensemble of simulated cold dark matter cosmologies. The result is insensitive to cosmological parameters; the presence of a trace, dissipationless gas component; and numerical resolution down to a limit of ~1000 …