We review theories of dark matter (DM) beyond the collisionless paradigm, known as self-
interacting dark matter (SIDM), and their observable implications for astrophysical structure …

The self-interacting dark matter (SIDM) paradigm offers a potential solution to the small-
scale structure problems faced by collisionless cold dark matter. This framework …

We present N-body simulations of a new class of self-interacting dark matter models, which
do not violate any astrophysical constraints due to a non-power-law velocity dependence of …

Can dark matter be stabilized by charge conservation, just as the electron is in the standard
model? We examine the possibility that dark matter is hidden, that is, neutral under all …

We present a comparison of halo properties in cosmological simulations of collisionless cold
dark matter (CDM) and self-interacting dark matter (SIDM) for a range of dark matter cross …

We performed a series of high-resolution collisionless N-body simulations designed to study
the substructure of Milky Way–size galactic halos (host halos) and the density profiles of …

N-body simulations and analytical calculations of the gravitational collapse in an expanding
universe predict that halos should form with a diverging inner density profile, the cusp. There …

Dark matter with Sommerfeld-enhanced annihilation has been proposed to explain
observed cosmic ray positron excesses in the 10 GeV to TeV energy range. We show that …

We use a self-consistent model of galaxy formation and the evolution of the intergalactic
medium to study the effects of the reionization of the Universe at high redshift on the …

We consider current observational constraints on the electromagnetic charge of dark matter.
The velocity dependence of the scattering cross section through the photon gives rise to …