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THE CASE OF 1.5 eV NEUTRINO HOT DARK MATTER

Name: THE CASE OF 1.5 eV NEUTRINO HOT DARK MATTER
Creator: Theo M. Nieuwenhuizen
Keywords: Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, 7. Clean energy, Astrophysics - Cosmology and Nongalactic Astrophysics

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Feb 2012Embargo end date: 01 Jan 2010Publisher:World Scientific Pub Co Pte LtdJournal:The Twelfth Marcel Grossmann Meeting

Authors: Theo M. Nieuwenhuizen;

doi: 10.1142/9789814374552_0081 , 10.48550/arxiv.1003.0459

arXiv: http://arxiv.org/abs/1003.0459

THE CASE OF 1.5 eV NEUTRINO HOT DARK MATTER

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Abstract

The lensing data of the galaxy cluster Abell 1689 can be explained by an isothermal fermion model with a mass of 1-2 eV. The best candidate is the 1.5 eV neutrino; its mass will be searched down to 0.2 eV in KATRIN 2015. If its righthanded (sterile) modes were created too, there is 20% neutrino hot dark matter. Their condensation on clusters explains the reionization of the intercluster gas without Pop. III stars. Baryonic structure formation is achieved by gravitional hydrodynamics alone, without dark matter trigger.

3 pages, Proceedings Marcel Grossmann XII, Paris, 2009

Related Organizations

University of Amsterdam
Netherlands
Institute for Theoretical Physics Amsterdam
Netherlands

Keywords

Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics - Cosmology and Nongalactic Astrophysics

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