Results 11 to 20 of about 678,119 (336)
How Cold is Cold Dark Matter? [PDF]
Journal of Cosmology and Astroparticle Physics, 2014 If cold dark matter consists of particles, these must be non-interacting and non-relativistic by definition. In most cold dark matter models however, dark matter particles inherit a non-vanishing velocity dispersion from interactions in the early ...
Armendariz-Picon, Cristian +1 more
core +2 more sources
Science, 1996 Motivated by inflation, the theory of big-bang nucleosynthesis and the quest for a deeper understanding of the fundamental forces and particles, a very successful paradigm for the development of structure in the Universe has evolved.
Dodelson, Scott +2 more
core +4 more sources
Condensation of Galactic Cold Dark Matter
Journal of Cosmology and Astroparticle Physics, 2016 We consider the steady-state regime describing the density profile of a dark matter halo, if dark matter is treated as a Bose-Einstein condensate. We first solve the fluid equation for "canonical" cold dark matter, obtaining a class of density profiles ...
Visinelli, Luca
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Hidden Hot Dark Matter as Cold Dark Matter [PDF]
, 2009 We show that hidden hot dark matter, hidden-sector dark matter with interactions that decouple when it is relativistic, is a viable dark matter candidate provided it has never been in thermal equilibrium with the particles of the standard model.
Sigurdson, Kris
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Axion as a cold dark matter candidate [PDF]
Physics Letters B, 2009 4 pages, no ...
Jai-chan Hwang, Hyerim Noh
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Scalar dark matter and cold stars [PDF]
Astroparticle Physics, 2006 In a medium composed of scalar particles with non-zero mass, the range of Van-der-Waals-type scalar mediated interactions among nucleons becomes infinite when the medium makes a transition to a Bose-Einstein condensed phase. We explore this phenomenon in an astrophysical context.
J.A. Grifols
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Axinos as Cold Dark Matter [PDF]
AIP Conference Proceedings, 2006 The connection of Dark Matter to our particle physics model is still one of the open cosmological questions. In these proceedings I will argue that axinos can be successful Cold Dark Matter candidates in models with Supersymmetry and the Peccei-Quinn solution of the strong CP problem.
Covi, Laura +2 more
openaire +5 more sources
Cold dark matter resuscitated? [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 The Cold Dark Matter (CDM) model has an elegant simplicitly which makes it very predictive, but when its parameters are fixed at their `canonical' values its predictions are in conflict with observational data. There is, however, much leeway in the initial conditions within the CDM framework.
White, Martin +3 more
openaire +2 more sources
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
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Annihilating Cold Dark Matter [PDF]
Physical Review Letters, 2000 Matches version accepted for publication in Physical Review Letters. Included the effect of adiabatic expansion. Some changes in the abstract.
Kaplinghat, M., Knox, L., Turner, M. S.
openaire +3 more sources