Résumé / Abstract Seminaire_GReCO

"Modelling the Large Scale Structure w and w/o massive neutrinos"

E. Massara
Scuola Internazionale Superiore Studi Avanzati (Trieste, Italie)

Neutrino oscillation experiments have shown neutrinos to be massive, therefore they affect the evolution of structures of the Universe at the linear and non-linear levels. First, I will discuss how to model the non-linear matter power spectrum in a massive neutrino cosmology, using an extended version of the halo model. I will show the comparison between these theoretical predictions and the results from N-body simulations. Second, since cosmic voids are expected to be good environments to characterise the neutrino-induced effect on the matter distribution, I will present the results of a numerical study of void properties that aims to identify these effects. Finally, I will discuss a model for describing the shape and evolution of void density profiles.

lundi 14 décembre 2015 - 11:00
Salle des séminaires Évry Schatzman,
Institut d'Astrophysique de Paris

Page web du séminaire / Seminar's webpage