Results 11 to 20 of about 213,451 (373)
A Cuspy Dark Matter Halo [PDF]
The Astrophysical Journal, 2021 The cusp–core problem is one of the main challenges of the cold dark matter paradigm on small scales; the density of a dark matter halo is predicted to rise rapidly toward the center as ρ(r) ∝ r α with α between −1 and −1.5, while such a cuspy profile ...
Yong Shi +6 more
semanticscholar +4 more sources
Diurnal modulation signal from dissipative hidden sector dark matter [PDF]
Physics Letters B, 2015 We consider a simple generic dissipative dark matter model: a hidden sector featuring two dark matter particles charged under an unbroken U(1)′ interaction.
R. Foot, S. Vagnozzi
doaj +5 more sources
The globular cluster-dark matter halo connection. [PDF]
Mon Not R Astron Soc, 2017 I present a simple phenomenological model for the observed linear scaling of the stellar mass in old globular clusters (GCs) with z = 0 halo mass in which the stellar mass in GCs scales linearly with progenitor halo mass at z = 6 above a minimum halo ...
Boylan-Kolchin M.
europepmc +3 more sources
Fuzzy Dark Matter and Dark Matter Halo Cores [PDF]
The Astrophysical Journal, 2020 Whereas cold dark matter (CDM) simulations predict central dark matter cusps with densities that diverge as ρ(r) ∼ 1/r, observations often indicate constant-density cores with finite central densities ρ0 and a flat density distribution within a core ...
A. Burkert
semanticscholar +5 more sources
Collisional Dark Matter and the Structure of Dark Halos [PDF]
The Astrophysical Journal, 2000 We study how the internal structure of dark halos is affected if Cold Dark Matter particles are assumed to have a large cross-section for elastic collisions. We identify a cluster halo in a large cosmological N-body simulation and resimulate its formation with progressively increasing resolution.
Naoki Yoshida +3 more
openalex +5 more sources
The GD-1 Stellar Stream Perturber as a Core-collapsed Self-interacting Dark Matter Halo [PDF]
The Astrophysical Journal LettersThe GD-1 stellar stream exhibits spur and gap structures that may result from a close encounter with a dense substructure. When interpreted as a dark matter subhalo, the perturber is denser than predicted in the standard cold dark matter (CDM) model.
Xingyu Zhang +3 more
doaj +2 more sources
Is Sextans dwarf galaxy in a scalar field dark matter halo? [PDF]
, 2014 The Bose-Einstein condensate/scalar field dark matter model, considers that the dark matter is composed by spinless-ultra-light particles which can be described by a scalar field. This model is an alternative model to the Λ-cold dark matter paradigm, and
V. Lora, J. Magaña
semanticscholar +3 more sources
The mass function of dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 14 pages, 12 figures, Minor changes.
Adrian Jenkins +7 more
openalex +6 more sources
Universal scaling laws and density slopes for dark matter haloes [PDF]
Scientific Reports, 2023 Smalls scale challenges suggest some missing pieces in our current understanding of dark matter. A cascade theory for dark matter is proposed to provide extra insights, similar to the cascade phenomenon in hydrodynamic turbulence.
Zhijie Xu
doaj +2 more sources
Cuspy dark matter haloes and the Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 5 pages, 1 figures, MNRAS (submitted)
James Binney, N. W. Evans
openalex +6 more sources