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Model of the Galaxy with Hot Dark Matter [PDF]

Open Astronomy, 2018
The model of the galaxy is considered as a structure of the baryonic matter embedded into the hot dark matter. The dark matter is supposed to come into being from the decaying matter after the epoch of structure formation.
Khokhlov Dmitri L.
doaj   +3 more sources

Dark matter as a heavy thermal hot relic [PDF]

Physics Letters B, 2020
If, during the early Universe epoch, the dark matter particle thermalizes in a hidden sector which does not thermalize with the Standard Model thermal bath, its relativistic thermal decoupling can easily lead to the observed relic density, even if the ...
Thomas Hambye, Matteo Lucca, Laurent Vanderheyden   +2 more
doaj   +5 more sources

Hot new early dark energy: Towards a unified dark sector of neutrinos, dark energy and dark matter

Physics Letters B, 2022
Hot new early dark energy describes a supercooled, first-order phase transition that takes place at sub-eV temperatures in the dark sector. It lowers the sound horizon, which provides a possible solution to the Hubble tension, and, at the same time, it ...
Florian Niedermann, Martin S. Sloth
doaj   +5 more sources

Indirect detection of hot dark matter

Journal of High Energy Physics
Cosmologically stable, light particles that came into thermal contact with the Standard Model in the early universe may persist today as a form of hot dark matter.
Jeff A. Dror, Pearl Sandick, Barmak Shams Es Haghi, Fengwei Yang   +3 more
doaj   +3 more sources

Biodiversity and emerging infectious threats: the microbial dark matter of Southwest China [PDF]

Frontiers in Microbiology
Southwest China is a global biodiversity hotspot, and its complex and diverse ecosystems harbor vast amounts of “microbial dark matter.” This paper systematically examines the distribution characteristics of microbial dark matter in hosts such as ...
Nan Guo, Nan Guo, Nan Guo, Zhiguo Liu, Zhenjun Li, Zhenjun Li, Jianguo Xu, Jianguo Xu   +7 more
doaj   +2 more sources

Thermal production of cold “hot dark matter” around eV

Journal of High Energy Physics, 2023
A very simple production mechanism of feebly interacting dark matter (DM) that rarely annihilates is thermal production, which predicts the DM mass around eV. This has been widely known as the hot DM scenario.
Wen Yin
doaj   +4 more sources

THE CASE OF 1.5 eV NEUTRINO HOT DARK MATTER [PDF]

The Twelfth Marcel Grossmann Meeting, 2012
3 pages, Proceedings Marcel Grossmann XII, Paris ...
Theodorus Maria Nieuwenhuizen
exaly   +3 more sources

Discreteness effects in simulations of hot/warm dark matter

Monthly Notices of the Royal Astronomical Society, 2007
In Hot or Warm Dark Matter universes the density fluctuations at early times contain very little power below a characteristic wavelength related inversely to the particle mass. We study how discreteness noise influences the growth of nonlinear structures smaller than this coherence scale in N-body simulations of cosmic structure formation.
Simon White, Jie Wang, White Simon D M
exaly   +4 more sources

Cosmic strings with self-interacting hot dark matter

Monthly Notices of the Royal Astronomical Society, 1998
5 pages, 3ps figures, Latex, uses mn.sty, submitted to ...
J P M DE CARVALHO, Avelino P P, P P Avelino   +2 more
exaly   +3 more sources

Interference with gravitational instability: Hot and fuzzy dark matter

Physical Review D
Wave or fuzzy dark matter produced with high momenta behaves in many ways like hot particle dark matter while also possessing seemingly different phenomenology due to wave interference. We develop wave perturbation theory to show that white noise density fluctuations generated by the interference of high-momenta waves are gravitationally unstable in ...
Huangyu Xiao, Rayne Liu, Wayne Hu
exaly   +3 more sources