arXiv
Open Access
2001
Turbulent Dynamos and Magnetic Helicity
Hantao Ji
Abstrak
It is shown that the turbulent dynamo $α$-effect converts magnetic helicity from the turbulent field to the mean field when the turbulence is electromagnetic while the magnetic helicity of the mean-field is transported across space when the turbulence is electrostatic or due to the electron diamagnetic effect. In all cases, however, the dynamo effect strictly conserves the total helicity except for resistive effects and a small battery effect. Implications for astrophysical situations, especially for the solar dynamo, are discussed.
Topik & Kata Kunci
Penulis (1)
H
Hantao Ji
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2001
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓