Results 221 to 230 of about 33,160 (253)
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Cosmic strings with self-interacting hot dark matter
Monthly Notices of the Royal Astronomical Society, 1998 5 pages, 3ps figures, Latex, uses mn.sty, submitted to ...
Pedro P. Avelino +1 more
exaly +3 more sources
Discreteness effects in simulations of hot/warm dark matter
Monthly Notices of the Royal Astronomical Society, 2007 In Hot or Warm Dark Matter universes the density fluctuations at early times contain very little power below a characteristic wavelength related inversely to the particle mass. We study how discreteness noise influences the growth of nonlinear structures smaller than this coherence scale in N-body simulations of cosmic structure formation.
Simon White, Jie Wang
exaly +4 more sources
Nuclear Physics B - Proceedings Supplements, 1995
The Cold + Hot Dark Matter (CHDM) model appears to require about 5 eV of neutrino mass in order to produce early enough galaxy formation. Recent experimental data suggests that this neutrino mass may be divided between two species of neutrinos, each with mass of about 2.4 eV.
Joel R. Primack +3 more
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The Cold + Hot Dark Matter (CHDM) model appears to require about 5 eV of neutrino mass in order to produce early enough galaxy formation. Recent experimental data suggests that this neutrino mass may be divided between two species of neutrinos, each with mass of about 2.4 eV.
Joel R. Primack +3 more
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Interference with gravitational instability: Hot and fuzzy dark matter
Physical Review DWave or fuzzy dark matter produced with high momenta behaves in many ways like hot particle dark matter while also possessing seemingly different phenomenology due to wave interference. We develop wave perturbation theory to show that white noise density fluctuations generated by the interference of high-momenta waves are gravitationally unstable in ...
Huangyu Xiao, Rayne Liu, Wayne Hu
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THE CASE OF 1.5 eV NEUTRINO HOT DARK MATTER [PDF]
The Twelfth Marcel Grossmann Meeting, 2012 3 pages, Proceedings Marcel Grossmann XII, Paris ...
Theodorus Maria Nieuwenhuizen
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A Little Hot Dark Matter Matters
Science, 1998Astronomers believe that a large part of the mass in the universe is "dark." But what is the nature of this unseen mass? In his research commentary, Primack discusses results reported in the same issue by Gawiser and Silk in which several models of dark matter were examined.
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Nuclear Physics B - Proceedings Supplements, 2000
Abstract Direct observations favor a low-mass-density universe, but a critical density universe with a neutrino component of dark matter provides the best model for explaining the observed structure of the universe over more than three orders of magnitude in distance scale.
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Abstract Direct observations favor a low-mass-density universe, but a critical density universe with a neutrino component of dark matter provides the best model for explaining the observed structure of the universe over more than three orders of magnitude in distance scale.
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Science, 2012
Astronomers still don't know what the unseen "dark matter" is that provides the gravity that holds the galaxies together, but they may soon be able to narrow in on its most basic properties.
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Astronomers still don't know what the unseen "dark matter" is that provides the gravity that holds the galaxies together, but they may soon be able to narrow in on its most basic properties.
openaire +1 more source