Cosmological magnetic fields

Abstract

Magnetic fields are observed not only in stars, but in galaxies, clusters, and even high redshift Lyman-alpha systems. In principle, these fields could play an important role in structure formation and also affect the anisotropies in the cosmic microwave background radiation (CMB). The study of cosmological magnetic fields aims not only to quantify these effects on large-scale structure and the CMB, but also to answer one of the outstanding puzzles of modern cosmology: when and how do magnetic fields originate? They are either primordial, i.e. created before the onset of structure formation, or they are generated during the process of structure formation itself.

10 pages, Revtex. Based on a plenary talk at ICGC 2000

References in corpus (4)

• Restoring the sting to metric preheating
• Radio wave emissions due to gravitational radiation
• Cosmological perturbations on a magnetised Bianchi I background
• Cosmological Magnetic Fields from Gauge-Mediated Supersymmetry-Breaking Models

Cited by in corpus (16)

• Effective potential at finite temperature in a constant magnetic field I: Ring diagrams in a scalar theory
• Effects of Electromagnetic Field on the Dynamics of Bianchi type $V{I}_0$ Universe with Anisotropic Dark Energy
• Magnetic tension and the geometry of the universe
• Effective potential at finite temperature in a constant hypermagnetic field: Ring diagrams in the Standard Model
• Magnetized gravitational waves
• Symmetry restoration at finite temperature with weak magnetic fields
• Gravitational waves and cosmic magnetism; a cosmological approach
• Thermodynamical Behaviour of Inhomogeneous Universe with Varying $\Lambda$ in Presence of Electromagnetic Field
• A lower bound on the local extragalactic magnetic field
• Primordial magnetic seed field amplification by gravitational waves
• Axial charge segregation and CP violation during the electroweak phase transition with hypermagnetic fields
• Dynamics of Magnetized Bulk Viscous Strings in Brans-Dicke Gravity
• Magnetic Fields and the Cosmic Microwave Background
• Chiral fermion mass and dispersion relations at finite temperature in the presence of hypermagnetic fields
• A Plane-Symmetric Inhomogeneous Cosmological Model of Perfect Fluid Distribution with Electromagnetic Field I
• Exact solution for charged-particle propagation during a first-order electroweak phase transition with hypermagnetic fields