Stellar dynamics and dark matter in Local Group dwarf galaxies
G Battaglia, C Nipoti - Nature Astronomy, 2022 - nature.com
When interpreted within the standard framework of Newtonian gravity and dynamics, the
kinematics of stars and gas in dwarf galaxies reveals that most of these systems are …
kinematics of stars and gas in dwarf galaxies reveals that most of these systems are …
The cusp–core problem in gas-poor dwarf spheroidal galaxies
P Boldrini - Galaxies, 2021 - mdpi.com
This review deals with the inconsistency of inner dark matter density profiles in dwarf
galaxies, known as the cusp–core problem. In particular, we aim to focus on gas-poor dwarf …
galaxies, known as the cusp–core problem. In particular, we aim to focus on gas-poor dwarf …
Strong dark matter self-interactions diversify halo populations within and surrounding the milky way
We perform a high-resolution cosmological zoom-in simulation of a Milky Way (MW)–like
system, which includes a realistic Large Magellanic Cloud analog, using a large differential …
system, which includes a realistic Large Magellanic Cloud analog, using a large differential …
Robust bounds on ALP dark matter from dwarf spheroidal galaxies in the optical MUSE-Faint survey
E Todarello, M Regis… - … of Cosmology and …, 2024 - iopscience.iop.org
Nearby dwarf spheroidal galaxies are ideal targets in the search for indirect dark matter
(DM) signals. In this work, we analyze MUSE spectroscopic observations of a sample of five …
(DM) signals. In this work, we analyze MUSE spectroscopic observations of a sample of five …
Measuring galaxy cluster mass profiles into the low-acceleration regime with galaxy kinematics
We probed the dynamical mass profiles of ten galaxy clusters from the HIghest X-ray FLUx
Galaxy Cluster Sample (HIFLUGCS) using galaxy kinematics. We numerically solved the …
Galaxy Cluster Sample (HIFLUGCS) using galaxy kinematics. We numerically solved the …
The surprising accuracy of isothermal Jeans modelling of self-interacting dark matter density profiles
A Robertson, R Massey, V Eke… - Monthly Notices of the …, 2021 - academic.oup.com
Recent claims of observational evidence for self-interacting dark matter (SIDM) have relied
on a semi-analytic method for predicting the density profiles of galaxies and galaxy clusters …
on a semi-analytic method for predicting the density profiles of galaxies and galaxy clusters …
Could compact stars in globular clusters constrain dark matter?
The dark matter content of globular clusters, highly compact gravity-bound stellar systems, is
unknown. It is also generally unknowable, due to their mass-to-light ratios typically ranging …
unknown. It is also generally unknowable, due to their mass-to-light ratios typically ranging …
HSTPROMO Internal Proper-motion Kinematics of Dwarf Spheroidal Galaxies. I. Velocity Anisotropy and Dark Matter Cusp Slope of Draco
We analyze four epochs of Hubble Space Telescope imaging over 18 yr for the Draco dwarf
spheroidal galaxy. We measure precise proper motions for hundreds of stars and combine …
spheroidal galaxy. We measure precise proper motions for hundreds of stars and combine …
Dark matter halo cores and the tidal survival of Milky Way satellites
R Errani, JF Navarro, J Peñarrubia… - Monthly Notices of …, 2023 - academic.oup.com
The cuspy central density profiles of cold dark matter (CDM) haloes make them highly
resilient to disruption by tides. Self-interactions between dark matter particles, or the cycling …
resilient to disruption by tides. Self-interactions between dark matter particles, or the cycling …
The diversity of rotation curves of simulated galaxies with cusps and cores
We use ΛCDM cosmological hydrodynamical simulations to explore the kinematics of
gaseous discs in late-type dwarf galaxies. We create high-resolution 21-cm 'observations' of …
gaseous discs in late-type dwarf galaxies. We create high-resolution 21-cm 'observations' of …