Active Regions. I: The Occurrence of Solar Flares and the Development of Active Regions
Abstract
A summary of data on the occurrence of flares and the development of active regions, based on cinematographic data is given. It is shown that flare frequency is determined by the orientation of the magnetic axis relative to the direction of solar rotation and the morphology of the magnetic field as seen in Hα. In particular, flares are most numerous in simple round spots with reversed polarity nearby, although they may also be frequent in complex spots with polarity reversal.
- Publication:
-
Solar Physics
- Pub Date:
- October 1970
- DOI:
- 10.1007/BF00221318
- Bibcode:
- 1970SoPh...14..328Z
- Keywords:
-
- Magnetic Field;
- Flare;
- Active Region;
- Polarity Region;
- Case History