CONSTRAINTS ON NEUTRINO MASSES FROM CFHTLS COSMIC SHEAR

As a hot dark-matter component, massive neutrinos modify the expansion history of the Universe as well as the evolution of cosmological perturbations, in a distinct way than cold dark matter or dark energy do. We look for such modifications in CFHTLS cosmic-shear data. Adding CMB, baryonic acoustic oscillations, and supernovae data, we are able to constrain the sum of the masses of the neutrinos species.