Results 21 to 30 of about 117,029 (345)
Substructures in cold dark matter haloes [PDF]
Monthly 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
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.
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Universal Properties of Dark Matter Halos [PDF]
Physical Review Letters, 2010 4 pages, 1 figure, revtex. Final version to appear in Phys.
Boyarsky A. +3 more
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Scale Lengths in Dark Matter Halos [PDF]
The Astrophysical Journal, 2005 We investigate a hypothesis regarding the origin of the scalelength in halos formed in cosmological N-body simulations. This hypothesis can be viewed as an extension of an earlier idea put forth by Merritt and Aguilar. Our findings suggest that a phenomenon related to the radial orbit instability is present in such halos and is responsible for density ...
Barnes, E. I. +3 more
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Collisional baryonic dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 Revised version; 6 pages, 2 figures, to appear in ...
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Dark matter–radiation interactions: the impact on dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Interactions between dark matter (DM) and radiation (photons or neutrinos) in the early Universe suppress density fluctuations on small mass scales. Here we perform a thorough analysis of structure formation in the fully non-linear regime using N-body simulations for models with DM-radiation interactions and compare the results to a traditional ...
Schewtschenko JA +4 more
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Dark matter annihilation at the galactic center [PDF]
, 1999 If cold dark matter is present at the galactic center, as in current models of the dark halo, it is accreted by the central black hole into a dense spike.
A. Eckart +24 more
core +2 more sources
Analytic model for galaxy and dark matter clustering [PDF]
, 2000 We investigate an analytic model to compute nonlinear power spectrum of dark matter, galaxies and their cross-correlation. The model is based on Press-Schechter halos, which cluster and have realistic dark matter profiles.
Spergel, U. Seljak
core +2 more sources
White dwarfs and Galactic dark matter [PDF]
, 2002 We discuss the recent discovery by Oppenheimer et al (2001) of old, cool white dwarf stars, which may be the first direct detection of Galactic halo dark matter.
Flynn, Chris +2 more
core +3 more sources
WEIGHING THE DARK MATTER HALO [PDF]
The Identification of Dark Matter, 2005 6 pages, 2 figures. To appear in "IDM2004: The 5th International Workshop on the Identification of Dark Matter", eds. N.
openaire +2 more sources