On the transport of magnetic fields by solar-like stratified convection
Open Access
- 15 January 2001
- journal article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 365 (3) , 562-570
- https://doi.org/10.1051/0004-6361:20000141
Abstract
The interaction of magnetic fields and stratified convection was studied in the context of the solar and late type stellar dynamos by using numerical 3D MHD simulations. The topology of stratified asymmetric and over-turning convection enables a pumping mechanism that may render the magnetic flux storage problem obsolete. The inclusion of open boundary conditions leads to a considerable flux loss unless the open boundary is placed close to the physical boundary. Simulations including solar-like latitudinal shear indicates that a toroidal field of several tens of kilo-Gauss may be held down by the pumping mechanism.Keywords
All Related Versions
This publication has 19 references indexed in Scilit:
- MODEL ATMOSPHERES OF VERY LOW MASS STARS AND BROWN DWARFSAnnual Review of Astronomy and Astrophysics, 1997
- Heating and activity of the solar corona: 2. Kink instability in a flux tubeJournal of Geophysical Research, 1997
- Magnetic structures in a dynamo simulationJournal of Fluid Mechanics, 1996
- The radial gradient in the sun's rotationThe Astrophysical Journal, 1989
- Magnetic fields interacting with nonlinear compressible convectionThe Astrophysical Journal, 1988
- Magnetic-flux transport by a convecting layer – topological, geometrical and compressible phenomenaJournal of Fluid Mechanics, 1983
- The kinematics of hexagonal magnetoconvectionGeophysical & Astrophysical Fluid Dynamics, 1983
- New results on the mechanism of magnetic flux pumping by three-dimensional convectionMonthly Notices of the Royal Astronomical Society, 1982
- The rate of magnetic field penetration through a Bénard convection layerJournal of Fluid Mechanics, 1980
- Topological pumping of magnetic flux by three-dimensional convectionJournal of Fluid Mechanics, 1974