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 …

Ultra-light dark matter is a class of dark matter models (DM), where DM is composed by
bosons with masses ranging from 10^-24\, eV< m< eV 10-24 eV< m< eV. These models …

We perform a comprehensive study of Milky Way (MW) satellite galaxies to constrain the
fundamental properties of dark matter (DM). This analysis fully incorporates inhomogeneities …

The lowest luminosity (L) Milky Way satellite galaxies represent the extreme lower limit of the
galaxy luminosity function. These ultra-faint dwarfs are the oldest, most dark matter …

In our modern understanding of galaxy formation, every galaxy forms within a dark matter
halo. The formation and growth of galaxies over time is connected to the growth of the halos …

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 …

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 …

We report the discovery of eight new ultra-faint dwarf galaxy candidates in the second year
of optical imaging data from the Dark Energy Survey (DES). Six of these candidates are …

We report the results of a systematic search for ultra-faint Milky Way satellite galaxies using
data from the Dark Energy Survey (DES) and Pan-STARRS1 (PS1). Together, DES and PS1 …

The Gaia mission has revolutionized our view of the Milky Way and its satellite citizens. The
field of Galactic Archaeology has been piecing together the formation and evolution of the …