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Degenerate Fermions in Galaxy Clusters and Halos

Published online by Cambridge University Press:  19 May 2006

G.A. Mamon ,
F. Combes ,
C. Deffayet ,
B. Fort ,
V. Muccione  and
D. Pfenniger
V. Muccione
Affiliation:
Geneva Observatory, 51 Ch. des Maillettes, 1290 Sauverny, Switzerland
D. Pfenniger
Affiliation:
Geneva Observatory, 51 Ch. des Maillettes, 1290 Sauverny, Switzerland
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Abstract

We explore the possibility that galaxy clusters or halos could besuited environments to host fermions like massive neutrinos in theirdegenerate state. Equilibrium density profiles for galaxy clustersand halos are calculated where the contribution of fermion particlesto an isotropic collisionless component is taken into account.Fermions are supposed to cluster in CDM protoclusters while theirphase space density is sufficient for not neglecting the Pauli'sexclusion principle.


Type
Research Article
Information
European Astronomical Society Publications Series , Volume 20: Mass Profiles and Shapes of Cosmological Structures , 2006 , pp. 291 - 292
Copyright
© EAS, EDP Sciences, 2006

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