Results 21 to 30 of about 417,071 (324)
21-cm observations and warm dark matter models [PDF]
Physical Review D, 2019 Observations of the redshifted 21-cm signal (in absorption or emission) allow us to peek into the epoch of "dark ages" and the onset of reionization. These data can provide a novel way to learn about the nature of dark matter, in particular about the ...
Boyarsky, Alexey +4 more
core +9 more sources
Scalar field theory for warm dark matter
The European Physical Journal Plus, 2020 19 pages, 3 figures. New comments added.
Jhonny A. Agudelo Ruiz
openalex +5 more sources
Warm Dark Matter from Higher-Dimensional Gauge Theories
Universe, 2021 Warm dark matter particles with masses in the keV range have been linked with the large group representations in gauge theories through a high number of species at decoupling.
Sinziana Paduroiu +3 more
doaj +1 more source
Testing the warmness of dark matter [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT Dark matter (DM) as a pressureless perfect fluid provides a good fit of the standard Λ cold dark matter (ΛCDM) model to the astrophysical and cosmological data. In this paper, we investigate two extended properties of DM: a possible time dependence of the equation of state of DM via Chevallier–Polarski–Linder parametrization ...
Rafael C. Nunes +2 more
openaire +2 more sources
The properties of warm dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 20 pages, 21 Figures, Published in MNRAS, minor updates to particle mass calculations: 1.4keV -> 1 ...
Carlos S. Frenk +7 more
openaire +5 more sources
A model for mixed warm and hot right-handed neutrino dark matter
Journal of High Energy Physics, 2021 We discuss a model where a mixed warm and hot keV neutrino dark matter rises naturally. We arrange active and sterile neutrinos in the same SU(3) L multiplet, with the lightest sterile neutrino being dark matter.
Maíra Dutra +3 more
doaj +1 more source
Dark matter in astrophysics/cosmology
SciPost Physics Lecture Notes, 2022 These lecture notes aim to provide an introduction to dark matter from the perspective of astrophysics/cosmology. We start with a rapid overview of cosmology, including the evolution of the Universe, its thermal history and structure formation.
Anne M. Green
doaj +1 more source
Warm dark matter from a gravitational freeze-in in extra dimensions
Journal of High Energy Physics, 2023 We study the freeze-in of gravitationally interacting dark matter in extra dimensions. Focusing on a minimal dark matter candidate that only interacts with the SM via gravity in a five-dimensional model we find that a large range of dark matter and ...
A. de Giorgi, S. Vogl
doaj +1 more source
Interacting warm dark matter [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 22 pages, 7 figures, 2 tables.
Cruz, Norman +3 more
openaire +6 more sources
Common origin of warm dark matter and dark radiation [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We consider a cosmological scenario where a relativistic particle and a stable massive particle are simultaneously produced from the decay of a late-decaying particle after Big-Bang Nucleosynthesis but before matter-radiation equality. The relativistic and massive particles behave as dark radiation and warm dark matter, respectively.
Keisuke Harigaya +2 more
openaire +3 more sources