Results 21 to 30 of about 428,876 (333)
The properties of warm dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 20 pages, 21 Figures, Published in MNRAS, minor updates to particle mass calculations: 1.4keV -> 1 ...
Lovell, Mark R. +5 more
openaire +4 more sources
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 ...
Pullen, Anthony R. +2 more
openaire +2 more sources
Warm decaying dark matter and the hubble tension [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 33 pages, 8 figures.
Blinov, Nikita +2 more
openaire +2 more sources
Testing the warmness of dark matter [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT Dark matter (DM) as a pressureless perfect fluid provides a good fit of the standard Λ cold dark matter (ΛCDM) model to the astrophysical and cosmological data. In this paper, we investigate two extended properties of DM: a possible time dependence of the equation of state of DM via Chevallier–Polarski–Linder parametrization ...
Kumar, Suresh +2 more
openaire +2 more sources
Warm Dark Matter Galaxies with Central Supermassive Black Holes
Universe, 2022 We generalize the Thomas–Fermi approach to galaxy structure to include central supermassive black holes and find, self-consistently and non-linearly, the gravitational potential of the galaxy plus the central black hole (BH) system.
Hector J. de Vega, Norma G. Sanchez
doaj +1 more source
The Epoch of Reionization in Warm Dark Matter Scenarios
Universe, 2021 In this paper we investigate how the Reionization process is affected by early galaxy formation in different cosmological scenarios. We use a semi-analytic model with suppressed initial power spectra to obtain the UV Luminosity Function in thermal Warm ...
Massimiliano Romanello +2 more
doaj +1 more source
Constraining Warm Dark Matter using QSO gravitational lensing [PDF]
, 2007 Warm Dark Matter (WDM) has been invoked to resolve apparent conflicts of Cold Dark Matter (CDM) models with observations on subgalactic scales. In this work we provide a new and independent lower limit for the WDM particle mass (e.g.
Abazajian +57 more
core +2 more sources
Analytic fluid approximation for warm dark matter
Astroparticle Physics, 2023 16 pages, 5 ...
Jorge Mastache, Axel de la Macorra
openaire +2 more sources
Decaying Warm Dark Matter and Neutrino Masses [PDF]
Physical Review Letters, 2007 Neutrino masses may arise from spontaneous breaking of ungauged lepton number. Due to quantum gravity effects the associated Goldstone boson - the majoron - will pick up a mass. We determine the lifetime and mass required by cosmic microwave background observations so that the massive majoron provides the observed dark matter of the Universe.
Lattanzi, Massimiliano +1 more
openaire +4 more sources
Decaying warm dark matter revisited [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 AbstractDecaying dark matter models provide a physically motivated way of channeling energy between the matter and radiation sectors. In principle, this could affect the predicted value of the Hubble constant in such a way as to accommodate the discrepancies between CMB inferences and local measurements of the same.
Holm, Emil Brinch +2 more
openaire +4 more sources