Results 41 to 50 of about 417,071 (324)
NONLINEAR EVOLUTION OF DARK MATTER SUBHALOS AND APPLICATIONS TO WARM DARK MATTER [PDF]
The Astrophysical Journal, 2014 We describe the methodology to include nonlinear evolution, including tidal effects, in the computation of subhalo distribution properties in both cold (CDM) and warm (WDM) dark matter universes. Using semi-analytic modeling, we include effects from dynamical friction, tidal stripping, and tidal heating, allowing us to dynamically evolve the subhalo ...
Andrew J. Benson +2 more
openaire +3 more sources
Cutoff in the Lyman-α forest power spectrum: Warm IGM or warm dark matter?
Physics Letters B, 2017 We re-analyse high redshift and high resolution Lyman-α forest spectra considered in [1], seeking to constrain the properties of warm dark matter particles.
Antonella Garzilli +2 more
doaj +1 more source
Dark Matters on the Scale of Galaxies
Universe, 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
Impact of Warm Dark Matter on the Cosmic Neutrino Background Anisotropies
Universe, 2022 The Cosmic Neutrino Background (CνB) anisotropies for massive neutrinos are a unique probe of large-scale structure formation. The redshift-distance measure is completely different for massive neutrinos as compared to electromagnetic radiation.
Christopher G. Tully, Gemma Zhang
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Non-Cold Dark Matter from Primordial Black Hole Evaporation
, 2020 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 ...
Baldes, Iason +3 more
core +1 more source
Warm dark matter and the ionization history of the Universe [PDF]
Physical Review D, 2017 15 pages, 5 ...
Lopez Honorez, Laura +3 more
openaire +3 more sources
Warm decaying dark matter and the hubble tension [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 33 pages, 8 figures.
Dan Hooper +4 more
openaire +3 more sources
Self-interacting warm dark matter
Physical Review D, 2000 It has been shown by many independent studies that the cold dark matter scenario produces singular galactic dark halos, in strong contrast with observations. Possible remedies are that either the dark matter is warm so that it has significant thermal motion or that the dark matter has strong self interactions.
Steen Hannestad, Robert J. Scherrer
openaire +3 more sources
Gravitino warm dark matter with entropy production [PDF]
Journal of High Energy Physics, 2003 Gravitinos with a mass in the keV range are an interesting candidate for warm dark matter. Recent measurements of the matter density of the universe and of cosmic structures at the dwarf galaxy scale rule out the simplest gravitino models with thermal freeze-out.
Baltz, Edward A., Murayama, Hitoshi
openaire +3 more sources
DETERMINATION OF DARK MATTER TYPE BY X-RAY SOURCES STATISTICS
Odessa Astronomical Publications, 2014 The current cosmological model includes cold dark matter, which consists of massive nonrelativistic particles. There are also some observational and theoretical evidences for warm dark matter.
A.V. Tugay
doaj +1 more source