CFHTLS weak-lensing constraints on the neutrino masses

Details CFHTLS weak-lensing constraints on the neutrino masses CFHTLS weak-lensing constraints on the neutrino masses

2008-10-03

arxiv.org/abs/0810.0555v2

Astron.Astrophys.500:657-665,2009

Astronomy and Astrophysics

Astrophysics

10 pages. Published version

Scientific paper

10.1051/0004-6361/200811077

We use measurements of cosmic shear from CFHTLS, combined with WMAP-5 cosmic microwave background anisotropy data, baryonic acoustic oscillations from SDSS and 2dFGRS and supernovae data from SNLS and Gold-set, to constrain the neutrino mass. We obtain a 95% confidence level upper limit of 0.54 eV for the sum of the neutrino masses, and a lower limit of 0.03 eV. The preference for massive neutrinos vanishes when shear-measurement systematics are included in the analysis.

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