The Magnetic Evolution of the Activity Complex AR:7260 - a Roadmap
Abstract
The active region NOAA 7260 rotated onto the north solar hemisphere as a mature bipole: a dominant negative-polarity sunspot with trailing plage and scattered small spots in attendance. The dominantp spot itself had strong magnetic fields and covered almost 400 × 10−6 of a solar hemisphere. For a period of seven days beginning 14 August, 1992 this active region displayed rapid and drastic evolution: no fewer than 50 magnetic bipoles emerged in the area trailing the large sunspot, increasing the region's magnetic flux by more than 1022 Mx. This new group of sunspots formed a complexβγδ configuration with twoδ spots and a high degree of magnetic shear.
- Publication:
-
Solar Physics
- Pub Date:
- December 1994
- DOI:
- 10.1007/BF00680598
- Bibcode:
- 1994SoPh..155..301L
- Keywords:
-
- Faculae;
- Magnetic Flux;
- Mapping;
- Polarity;
- Sunspot Cycle;
- Astronomical Observatories;
- Imaging Spectrometers;
- Magnetic Dipoles;
- Solar Magnetic Field;
- Space-Time Functions;
- Solar Physics;
- Flare;
- Active Region;
- Magnetic Flux;
- Strong Magnetic Field;
- Proper Motion