Beginning Stages of Local Magnetic Field Formation
Abstract
Based on a study of the initial stages of local magnetic field formation, the appearance of a new magnetic flux in the photosphere is studied. This magnetic flux is found to occur both under the influence of different modes of convective motion as well as under the action of Paleomagnetic fields. Waldmeier's Heliographic Maps of the Photosphere and Mt. Wilson Observatory daily magnetic maps were used in the analysis. Observed regularities could not be explained by a model of magnetic flux tubes emerging on the photospheric surface. This model can not account for the practically simultaneous development of separate active regions, belonging to different solar hemispheres and different cycles of solar activity in one, relatively narrow, 'unipolar' sector of the background field. It is also difficult to explain the different roles and velocities of negative and positive polarities during the formation of new magnetic fields. The importance of velocity measurements and maps for solving the observed phenomenon is stressed.
- Publication:
-
Bulletin of the Astronomical Institutes of Czechoslovakia
- Pub Date:
- 1981
- Bibcode:
- 1981BAICz..32..129B
- Keywords:
-
- Astronomical Models;
- Convective Flow;
- Magnetic Flux;
- Paleomagnetism;
- Photosphere;
- Solar Magnetic Field;
- Magnetic Field Configurations;
- Magnetic Signatures;
- Polarity;
- Solar Activity Effects;
- Solar Physics