Results 21 to 30 of about 690,483 (329)
Journal of Cosmology and Astroparticle Physics, 2012 Very weakly interacting slim particles (WISPs), such as axion-like particles (ALPs) or hidden photons (HPs), may be non-thermally produced via the misalignment mechanism in the early universe and survive as a cold dark matter population until today.
Arias, P. +5 more
openaire +5 more sources
Dark Matters on the Scale of Galaxies
Universe, 2020 The cold dark-matter model successfully explains both the emergence and evolution of cosmic structures on large scales and, when we include a cosmological constant, the properties of the homogeneous and isotropic Universe.
Ivan de Martino +5 more
doaj +1 more source
Making (dark matter) waves: Untangling wave interference for multi-streaming dark matter
The Open Journal of Astrophysics, 2022 The classical dynamics of collisionless cold dark matter, commonly described by fluid variables or a phase-space distribution, can be captured in a single semiclassical wavefunction.
Alex Gough, Cora Uhlemann
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Radial Oscillations of Quark Stars Admixed with Dark Matter
Universe, 2022 We investigated compact stars consisting of cold quark matter and fermionic dark matter treated as two admixed fluids. We computed the stellar structures and fundamental radial oscillation frequencies of different masses of the dark fermion in the cases ...
José C. Jiménez, Eduardo S. Fraga
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Detecting cold dark-matter candidates [PDF]
Physical Review D, 1986 We consider the use of superheated superconducting colloids as detectors of weakly interacting galactic halo candidate particles (e.g. photinos, massive neutrinos, and scalar neutrinos). These low temperature detectors are sensitive to the deposition of a few hundreds of eV's.
, Drukier, , Freese, , Spergel
openaire +2 more sources
Halo cold dark matter and microlensing [PDF]
Physical Review Letters, 1994 There is good evidence that most of the baryons in the Universe are dark and some evidence that most of the matter in the Universe is nonbaryonic with cold dark matter (cdm) being a promising possibility. We discuss expectations for the abundance of baryons and cdm in the halo of our galaxy and locally.
Gates, Evalyn, Turner, Michael S.
openaire +3 more sources
Light cold dark matter from non-thermal decay
Physics Letters B, 2023 We investigate the mass range and the corresponding free-streaming length scale of dark matter produced non-thermally from decay of heavy objects which can be either dominant or sub-dominant at the moment of decay.
Ki-Young Choi +4 more
doaj +1 more source
Substructures in cold dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 We analyse the properties of substructures within dark matter halos (subhalos) using a set of high-resolution numerical simulations of the formation of structure in a Lambda-CDM Universe. Our simulation set includes 11 high-resolution simulations of massive clusters as well as a region of mean density, allowing us to study the spatial and mass ...
De Lucia G. +7 more
openaire +6 more sources
Dark Energy and Dark Matter [PDF]
, 2003 It is a puzzle why the densities of dark matter and dark energy are nearly equal today when they scale so differently during the expansion of the universe. This conundrum may be solved if there is a coupling between the two dark sectors. In this paper we
A. Riotto +30 more
core +2 more sources
Resolving XENON excess with decaying cold dark matter
European Physical Journal C: Particles and Fields, 2021 We propose a decaying cold dark matter model to explain the excess of electron recoil observed at the XENON1T experiment. In this scenario, the daughter dark matter from the parent dark matter decay easily obtains velocity large enough to saturate the ...
Shuai Xu, Sibo Zheng
doaj +1 more source