Clustering in growing neutrino cosmologies

Details Clustering in growing neutrino cosmologies Clustering in growing neutrino cosmologies

2009-01-09

arxiv.org/abs/0901.1239v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

To appear in the American institute of Physics (AIP). Proceedings of the DSU 2008 - 4th International Workshop on the Dark Sid

Scientific paper

We show that growing neutrino models, in which the growing neutrino mass stops the dynamical evolution of a dark energy scalar field, lead to a substantial neutrino clustering on the scales of superclusters. Nonlinear neutrino lumps form at redshift z ~ 1 and could partially drag the clustering of dark matter. If observed, large scale non-linear structures could be an indication for a new attractive force stronger than gravity and mediated by the 'cosmon' dark energy scalar field.

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