English

Turbulent processes and mean-field dynamo

Solar and Stellar Astrophysics 2023-11-23 v5

Abstract

Mean-field dynamo theory has important applications in solar physics and galactic magnetism. We discuss some of the many turbulence effects relevant to the generation of large-scale magnetic fields in the solar convection zone. The mean-field description is then used to illustrate the physics of the α\alpha effect, turbulent pumping, turbulent magnetic diffusivity, and other effects on a modern solar dynamo model. We also discuss how turbulence transport coefficients are derived from local simulations of convection and then used in mean-field models.

Keywords

Cite

@article{arxiv.2303.12425,
  title  = {Turbulent processes and mean-field dynamo},
  author = {Axel Brandenburg and Detlef Elstner and Youhei Masada and Valery Pipin},
  journal= {arXiv preprint arXiv:2303.12425},
  year   = {2023}
}

Comments

74 pages, 20 figures, 2 tables, Space Science Reviews, accepted, special issue "Solar and stellar dynamos: a new era" (corrected fig17)

R2 v1 2026-06-28T09:27:57.452Z