2004/11/30 by Kevork N. Abazajian, Kevork Abazajian, Eric R. Switzer +3
Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Cold dark matter #Cosmology #Dark energy #Dark matter #Galaxies: Formation, Evolution, Phenomena #Galaxy #Halo #Hot dark matter #Matter power spectrum #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Particle physics #Physics #Redshift #Spectral density #Warm dark matter #Weak gravitational lensing #astro-ph
paper · pdf · doi:10.1103/physrevd.71.043507
published as Phys.Rev.D71:043507,2005 · v2: matches PRD version
arxiv created 2005/02/09 · openalex publication_date 2005/02/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Measurements of the linear power spectrum of galaxies have placed tight constraints on neutrino masses. We extend the framework of the halo model of cosmological nonlinear matter clustering to include the effect of massive neutrino infall into cold dark matter (CDM) halos. The magnitude of the effect of neutrino clustering for three degenerate mass neutrinos with m_\ensuremathνi=0.9 eV is of order \ensuremath∼1%, within the potential sensitivity of upcoming weak lensing surveys. In order to use these measurements to further constrain---or eventually detect---neutrino masses, accurate theoretical predictions of the nonlinear power spectrum in the presence of massive neutrinos will be needed, likely only possible through high-resolution multiple particle (neutrino, CDM and baryon) simulations.