Galaxies and their dark-matter haloes have posed several challenges to the dark energy
plus cold dark matter (Λ CDM) cosmological model. These discrepancies between …

The dark energy plus cold dark matter (ΛCDM) cosmological model has been a
demonstrably successful framework for predicting and explaining the large-scale structure of …

Many aspects of the large-scale structure of the Universe can be described successfully
using cosmological models in which 27±1% of the critical mass-energy density consists of …

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 …

Our Galaxy, the Milky Way, is a benchmark for understanding disk galaxies. It is the only
galaxy whose formation history can be studied using the full distribution of stars from faint …

Despite its continued observational successes, there is a persistent (and growing) interest in
extending cosmology beyond the standard model, Λ CDM. This is motivated by a range of …

The conventional cold-particle interpretation of dark matter (known as 'cold dark matter', or
CDM) still lacks laboratory support and struggles with the basic properties of common dwarf …

I review current efforts to measure the mean density of dark matter near the Sun. This
encodes valuable dynamical information about our Galaxy and is also of great importance …

We examine the nonlinear structure of gravitationally collapsed objects that form in our
simulations of wavelike cold dark matter, described by the Schrödinger-Poisson (SP) …

Gravitational potential fluctuations driven by bursty star formation can kinematically 'heat
up'dark matter at the centres of dwarf galaxies. A key prediction of such models is that, at a …