Results 1 to 10 of about 29,408 (153)
Interacting hot dark matter [PDF]
Physical Review D, 1997 We discuss the viability of a light particle ($\sim 30$ eV neutrino) with strong self-interactions as a dark matter candidate. The interaction prevents the neutrinos from free-streaming during the radiation dominated regime so galaxy sized density perturbations can survive. Smaller scale perturbations are damped due to neutrino diffusion.
F. Atrio‐Barandela, Sacha Davidson
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Hot QCD and warm dark matter [PDF]
Proceedings of XXIVth International Symposium on Lattice Field Theory — PoS(LAT2006), 2006 One of the possible explanations for the dark matter needed in the standard cosmological model is so-called warm dark matter, in the form of right-handed ("sterile") neutrinos with a mass in the keV range. I describe how various properties of QCD at temperatures of a few hundred MeV play an important role in the theoretical computations that are needed
M. Laine
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Cosmic strings with self-interacting hot dark matter [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 5 pages, 3ps figures, Latex, uses mn.sty, submitted to ...
P. P. Avelino, J. P. M. de Carvalho
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Warm-plus-hot neutrino dark matter [PDF]
Physical Review D, 1995 We investigate a new hybrid-model universe containing two types of dark matter, one ``warm'' and the other ``hot.'' The hot component is an ordinary light neutrino with mass \ensuremath{\sim}25${\mathit{h}}^{2}$ eV while the warm component is a sterile neutrino with mass \ensuremath{\sim}700${\mathit{h}}^{2}$ eV.
Robert Malaney +2 more
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Model of the Galaxy with Hot Dark Matter [PDF]
Open Astronomy, 2018 Abstract The model of the galaxy is considered as a structure of the baryonic matter embedded into the hot dark matter. The dark matter is supposed to come into being from the decaying matter after the epoch of structure formation. The galaxy is divided into two regions. In the inner region, the baryonic matter predominates over the hot dark matter
D. L. Khokhlov
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Hidden Hot Dark Matter as Cold Dark Matter
, 2009 We show that hidden hot dark matter, hidden-sector dark matter with interactions that decouple when it is relativistic, is a viable dark matter candidate provided it has never been in thermal equilibrium with the particles of the standard model. This hidden hot dark matter may reheat to a lower temperature and number density than the visible Universe ...
Kris Sigurdson
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Axions as hot and cold dark matter [PDF]
Journal of Cosmology and Astroparticle Physics, 2014 The presence of a hot dark matter component has been hinted at 3 sigma by a combination of the results from different cosmological observations. We examine a possibility that pseudo Nambu-Goldstone bosons account for both hot and cold dark matter components.
Kwang Sik Jeong +2 more
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Hot Dark Matter in Cosmology [PDF]
, 2000 22 pages, including four postscript figures; to appear in D. O.
Joel R. Primack, Michael Groß
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Hot-dark matter, cold dark matter and accelerating universe
, 2006 The Friedman equation is solved for a universe contains hotdark matter and cold dark matter. In this scenario, hot-dark matter drives an accelerating universe no cold dark matter.
Abbas Farmany +2 more
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