Results 31 to 40 of about 113,784 (303)
A New Stellar Mass Proxy for Subhalo Abundance Matching
The Astrophysical Journal, 2023 Subhalo abundance matching (SHAM) has played an important role in improving our understanding of how galaxies populate their host dark matter halos.
Chen-Yu Chuang, Yen-Ting Lin
doaj +1 more source
The Structure of Dark Matter Haloes in Dwarf Galaxies [PDF]
, 1995 Recent observations indicate that dark matter haloes have flat central density profiles. Cosmological simulations with non-baryonic dark matter predict however self similar haloes with central density cusps.
A. Burkert +4 more
core +2 more sources
The mass function of dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 We combine data from a number of N-body simulations to predict the abundance of dark haloes in cold dark matter (CDM) universes over more than four orders of magnitude in mass. A comparison of different simulations suggests that the dominant uncertainty in our results is systematic and is smaller than 10–30 per cent at all masses, depending on the halo
Jenkins, A. R. +7 more
openaire +3 more sources
Galaxy Disruption in a Halo of Dark Matter
Science, 2003 The relics of disrupted satellite galaxies have been found around the Milky Way and Andromeda, but direct evidence of a satellite galaxy in the early stages of disruption has remained elusive. We have discovered a dwarf satellite galaxy in the process of being torn apart by gravitational tidal forces as it merges with a larger galaxy's dark matter halo.
Forbes, Duncan +4 more
openaire +4 more sources
Small scale structures in coupled scalar field dark matter
Physics Letters B, 2014 We investigate structure formation for ultra-light scalar field dark matter coupled to quintessence, in particular the cosmon–bolon system. The linear power spectrum is computed by a numerical solution of the coupled field equations.
J. Beyer, C. Wetterich
doaj +1 more source
Halo model description of the non-linear dark matter power spectrum at $k \gg 1$ Mpc$^{-1}$
, 2010 Accurate knowledge of the non-linear dark-matter power spectrum is important for understanding the large-scale structure of the Universe, the statistics of dark-matter haloes and their evolution, and cosmological gravitational lensing.
Adelman-McCarthy +86 more
core +1 more source
Symposium - International Astronomical Union, 1996 The observational evidence for dark halos around galaxies is shortly reviewed. New and old techniques and results constraining the mass, the distribution, the shape and the nature of dark halos are discussed.
openaire +1 more source
Baryons shaping dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT In this work, we aim at investigating the effects of baryons on the dark matter (DM) haloes structure, focusing on the correlation between the presence and importance of stellar discs and the halo shapes. We study the properties of a subsample of DM haloes from Fenix and eagle cosmological simulations.
P Cataldi +3 more
openaire +4 more sources
Condensation of Galactic Cold Dark Matter
, 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
core +1 more source
Neutrino Constraints on the Dark Matter Total Annihilation Cross Section [PDF]
, 2007 In the indirect detection of dark matter through its annihilation products, the signals depend on the square of the dark matter density, making precise knowledge of the distribution of dark matter in the Universe critical for robust predictions.
A. Klypin +5 more
core +2 more sources