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Brief History of Ultra-light Scalar Dark Matter Models [PDF]
This is a review on the brief history of the scalar field dark matter model also known as fuzzy dark matter, BEC dark matter, wave dark matter, or ultra-light axion. In this model ultra-light scalar dark matter particles with mass m = O(10-22)eV condense
Lee Jae-Weon
doaj +4 more sources
Condensation of galactic cold dark matter [PDF]
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 which includes the Navarro-Frenk-White profile, and which diverge at the halo core.
Visinelli, Luca
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Cold dark matter with MOND scaling [PDF]
We provide a holographic dual description of Milgrom's scaling associated with galactic rotation curves. Our argument is based on the recent entropic reinterpretation of Newton's laws of motion. We propose a duality between cold dark matter and modified Newtonian dynamics (MOND).
Y. Jack Ng, Chiu Man Ho, Djordje Minic
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Observational evidence for self-interacting cold dark matter [PDF]
Cosmological models with cold dark matter composed of weakly interacting particles predict overly dense cores in the centers of galaxies and clusters and an overly large number of halos within the Local Group compared to actual observations.
D. Spergel, P. Steinhardt
semanticscholar +4 more sources
Hidden Hot Dark Matter as Cold Dark Matter [PDF]
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. This hidden hot dark matter may reheat to a lower temperature and number density than the visible Universe ...
Sigurdson, Kris
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Non-cold dark matter from primordial black hole evaporation [PDF]
Dark matter coupled solely gravitationally can be produced through the decay of primordial black holes in the early universe. If the dark matter is lighter than the initial black hole temperature, it could be warm enough to be subject to structure ...
Iason Baldes+3 more
semanticscholar +1 more source
Updated constraints on decaying cold dark matter [PDF]
In this paper we update the constraints on the simple decaying cold dark matter (DCDM) model with dark radiation (DR) as decay product. We consider two different regimes of the lifetime, i.e.
Andreas Nygaard, T. Tram, S. Hannestad
semanticscholar +1 more source
Simulating mixed fuzzy and cold dark matter [PDF]
The distinctive effects of fuzzy dark matter are most visible at non-linear galactic scales. We present the first simulations of mixed fuzzy and cold dark matter, obtained with an extended version of the Nyx code.
B. Schwabe+4 more
semanticscholar +1 more source
The Cusp–Core Problem in Gas-Poor Dwarf Spheroidal Galaxies
This review deals with the inconsistency of inner dark matter density profiles in dwarf galaxies, known as the cusp–core problem. In particular, we aim to focus on gas-poor dwarf galaxies.
Pierre Boldrini
doaj +1 more source
Cold dark matter and the LHC [PDF]
33 pages, 15 eps figures, J. Phys. G topical review (documentclass iopart)
Marco Battaglia+3 more
openaire +4 more sources