Cosmological simulations with self-interacting dark matter

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Gravitational probes of dark matter physics (2017, background): “Interactions lead to the redistribution of energy and angular momentum of particles in individual dark matter halos, typically on scales where the per-particle interaction rate Γ ∼ ρσv/mχ is of order 1/td, where td is the dynamical time and σ is the (velocity-dependent) self-interaction cross sectio”
Galactic Searches for Dark Matter (2012, background): “Several groups have shown via N-body simulations that subhalos in this model are also less dense, and it is also more likely for the dSphs to populate the most massive subhalos of the Milky Way (Vogelsberger et al., 2012; Rocha et al., 2012; Peter et al., 2012).”
SIMP spectroscopy (2015, background): “There are strong constraints on large dark-matter self scatterings from bullet-cluster obsersvations [14–16] and halo shape simulations [17, 18], which give roughly σscatter/mDM .”
Detecting superlight dark matter with Fermi-degenerate materials (2015, background): “Bullet-cluster constraints [61–63] along with recent simulations which reanalyze the constraints from halo shapes [64, 65], limit the DM self-interaction cross section to”