Constraints on the Primordial Magnetic Field from $σ_8$

Simple item page
dc.creatorYamazaki, Dai G.
dc.creatorIchiki, Kiyotomo
dc.creatorKajino, Toshitaka
dc.creatorMathews, Grant. J.
dc.date2008-11-13
dc.date.accessioned2026-07-07T12:16:00Z
dc.date.available2026-07-07T12:16:00Z
dc.descriptionA primordial magnetic field (PMF) can affect the evolution of density field fluctuations in the early universe.In this paper we constrain the PMF amplitude $B_λ$ and power spectral index $n_\mathrm{B}$ by comparing calculated density field fluctuations with observational data, i.e. the number density fluctuation of galaxies.We show that the observational constraints on cosmological density fluctuations, as parameterized by $σ_8$, lead to strong constraints on the amplitude and spectral index of the PMF.
dc.description11 pages, 1 figure, accepted for publication as Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0811.2221
dc.identifierhttp://arxiv.org/abs/0811.2221
dc.identifierPhys.Rev.D78:123001,2008
dc.identifierdoi:10.1103/PhysRevD.78.123001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211666
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleConstraints on the Primordial Magnetic Field from $σ_8$
dc.typetext

Files

Collections

arXiv