Neutrino properties from cosmology

Understand

Precision cosmology enables to test fundamental physics, including neutrino properties, with unprecedented accuracy.

• In this work, I review the basics of neutrino cosmology.
• I briefly describe how neutrinos affect cosmological observables, such as anisotropies in the cosmic microwave background and fluctuations in the matter field.
• I show current constraints and projected sensitivities on the sum of the neutrino masses $\Sigma m_\nu$ and on the number of relativistic species $N_\mathrm{eff}$ from a selection of cosmological data.