Francisco Villaescusa Navarro (Triestre obs)

Abstract: I will present the effects induced by massive neutrinos on the clustering properties of dark matter halos, showing that for cosmologies with massive neutrinos, the bias between the spatial distribution of those and the spatial distribution of the underlying matter depends on the scale, in contrast to the standard assumption. I will also show the impact of massive neutrinos on the halo mass function (HMF), pointing out that a universal HMF can be obtained if quantities are computed with respect to the cold dark matter component. I will finally show the consequences, in terms of the determination of the cosmological parameters, of having used an incorrect calibration of the HMF in cosmologies with massive neutrinos.