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Higher helicity invariants and solar dynamo.
- Source :
-
Geomagnetism & Aeronomy . Jan2017, Vol. 57 Issue 1, p113-118. 6p. - Publication Year :
- 2017
-
Abstract
- Modern models of nonlinear dynamo saturation in celestial bodies (specifically, on the Sun) are largely based on the consideration of the balance of magnetic helicity. This physical variable has also a topological meaning: it is associated with the linking coefficient of magnetic tubes. In addition to magnetic helicity, magnetohydrodynamics has a number of topological integrals of motion (the so-called higher helicity moments). We have compared these invariants with magnetic helicity properties and concluded that they can hardly serve as nonlinear constraints on dynamo action. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DYNAMO theory (Physics)
*NONLINEAR systems
*ASTROPHYSICS
*MAGNETOHYDRODYNAMICS
*SUN
Subjects
Details
- Language :
- English
- ISSN :
- 00167932
- Volume :
- 57
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Geomagnetism & Aeronomy
- Publication Type :
- Academic Journal
- Accession number :
- 121387527
- Full Text :
- https://doi.org/10.1134/S0016793217010133