#dark matter
44 papers match
Dark Matter Constraints from Small-Scale Cosmic Structure
Ethan O. Nadler, Keir K. Rogers, Alex Drlica-Wagner
The paper reviews how observations of small‑scale cosmic structures, such as dwarf galaxies and the Lyman‑α forest, constrain the microphysical properties of dark matter models.
Dynamical flattening of halo density cusps by Q-ball dark matter
Alexander Libanov, Sergey Troitsky
The paper proposes that dark‑matter Q‑balls, a type of non‑topological soliton, can grow in galactic halo centers and convert rest‑mass energy into relativistic dark‑sector particl…
Constraining the shape of dark matter haloes using only starlight II. Tests of the technique with objects of known gravitational potential
Jorge Sanchez Almeida, Angel R. Plastino, Sergio Guerra Arencibia +2
The paper validates a photometry‑based Eddington Inversion Method (EIM‑tool) that tests whether observed stellar distributions are physically consistent with cuspy or cored dark‑ma…
Quadratic Axion Couplings in String Theory
Naman Agarwal, Andrew R. Frey, Ratul Mahanta +1
The paper investigates how string theory can generate quadratic couplings between axion-like particles and electromagnetic fields, exploring classical, perturbative, and non‑pertur…
Bridging Superfluid and Nonminimally Coupled BEC Dark Matter through RAQUAL
Stefano Liberati, Valentin Pomakov, Samuele Silveravalle
The paper examines how superfluid dark matter (SFDM) can be derived as the Newtonian, low‑acceleration limit of a relativistic RAQUAL theory and maps its interaction sector onto th…
Universality of dual mass-scaled fundamental modes in two-fluid neutron stars with mirror dark matter
Hajime Sotani, Ankit Kumar
The paper investigates the vibration frequencies of neutron stars containing mirror dark matter using a two‑fluid model, showing that mass‑scaled fundamental frequencies follow uni…