Weighing Neutrinos with Large-Scale Structure

Details Weighing Neutrinos with Large-Scale Structure Weighing Neutrinos with Large-Scale Structure

2004-11-03

arxiv.org/abs/astro-ph/0411092v1

Nucl.Phys.Proc.Suppl.143:439-446,2005

Astronomy and Astrophysics

Astrophysics

8 pages, 6 figures; invited review in 'Neutrino 2004', College de France, Paris

Scientific paper

10.1016/j.nuclphysbps.2005.01.14

While it is established that the effect of neutrinos on the evolution of cosmic structure is small, the upper limits derived from large-scale structure could help significantly to constrain the absolute scale of the neutrino masses. Current results from cosmology set an upper limit on the sum of the neutrino masses of ~ 1 eV, somewhat depending on the data sets used in the analyses and assumed priors on cosmological parameters. In this review we discuss the effects of neutrinos on large-scale structure which make these limits obtainable. We show the impact of neutrino masses on the matter power spectrum, the cosmic microwave background and the clustering amplitude. A summary of derived cosmological neutrino mass upper limits is given, and we discuss future methods which will improve the mass upper limits by an order of magnitude.

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