Numerical solution of magnetic flux emergence in gravity-stratified solar atmosphere
Abstract
Numerical MHD simulation in Lagrangian scheme is made of the dynamic evolution of the solar magnetic bipolar field in a gravity-stratified atmosphere when an antiparallel or parallel dipole emerges from the substratosphere. It is demonstrated that the emergence will lead to converging and descending motion of the plasma, and that a pressure must be added for the dipole to float. The floating results in the formation of a current sheet in the interface between the old and the new fields.
- Publication:
-
Acta Astrophysica Sinica
- Pub Date:
- June 1992
- Bibcode:
- 1992AcApS..12...63S
- Keywords:
-
- Magnetic Flux;
- Magnetohydrodynamics;
- Solar Atmosphere;
- Solar Gravitation;
- Solar Magnetic Field;
- Solar Physics;
- Computerized Simulation;
- Current Sheets;
- Magnetic Dipoles;
- Magnetohydrodynamic Flow;
- Solar Physics