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arxiv: 0802.1515 · v1 · submitted 2008-02-11 · 🌌 astro-ph

Neutrino clustering in growing neutrino quintessence

classification 🌌 astro-ph
keywords neutrinoclusteringdarkgrowingattractivecosmondragdynamical
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A growing neutrino mass can stop the dynamical evolution of a dark energy scalar field, thus explaining the 'why now' problem. We show that such models lead to a substantial neutrino clustering on the scales of superclusters. Nonlinear neutrino lumps form at redshift z \sim 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 'cosmon force' stronger than gravity.

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