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13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

Clustering, lensing, and ISW-RS from the DEMNUni neutrino simulations

15 Dec 2015, 14:21
21m
Level -1, Room 16 (International Conference Centre Geneva)

Level -1, Room 16

International Conference Centre Geneva

17 Rue de Varembé, 1211 Geneva

Speaker

Dr Carmelita Carbone (National Institute for Astrophysics - INAF)

Description

I will present the first set of cosmological simulations produced within the “Dark Energy and Massive Neutrino Universe” (DEMNUni) project. These simulations are characterized by L=2 Gpc/h, Npart=2 x 2048^3, a baseline LCDM-Planck cosmology, and four different total neutrino masses, Mnu=0, 0.17, 0.3, 0.53 eV, with a degenerate mass spectrum. They are the largest N-body simulations to date with a massive neutrino component treated as an additional particle type. I will present fully non-linear effects in the presence of massive neutrinos, extracted from the DEMNUni simulations, and show how neutrino free-streaming alters not only LSS clustering and lensing, but introduces also an excess of power in the ISW/RS signals, and related cross-correlations, at intermediate scales.

Primary author

Dr Carmelita Carbone (National Institute for Astrophysics - INAF)

Presentation Materials