Results 11 to 20 of about 53,858 (261)

The Cusp–Core Problem in Gas-Poor Dwarf Spheroidal Galaxies

open access: yesGalaxies, 2021
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

Annihilating Cold Dark Matter [PDF]

open access: yesPhysical 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

WISPy cold dark matter [PDF]

open access: yesJournal 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

open access: yesUniverse, 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

Halo cold dark matter and microlensing [PDF]

open access: yesPhysical 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

Detecting cold dark-matter candidates [PDF]

open access: yesPhysical 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

Making (dark matter) waves: Untangling wave interference for multi-streaming dark matter

open access: yesThe 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
doaj   +1 more source

Substructures in cold dark matter haloes [PDF]

open access: yesMonthly 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

Radial Oscillations of Quark Stars Admixed with Dark Matter

open access: yesUniverse, 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
doaj   +1 more source

Light cold dark matter from non-thermal decay

open access: yesPhysics 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

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