Active longitudes on the Sun and their manifestation in interplanetary space.
Abstract
Longitudinal-distribution graphs of different manifestations of solar activity are analyzed. The analysis shows the existence of two fundamental directions of active longitudes rotating faster than the Carrington revolution. The mean value of the synodic revolution of the first direction is 26.77 d while that of the second direction is 27.16 d. It is suggested that both of these active longitudes are manifested in the two fundamental inclinations of the IMF sector boundaries demonstrated by Svalgaard and Wilcox and synodically rotating over 26.84 and 27.14 d.
- Publication:
-
Geomagnetism and Aeronomy
- Pub Date:
- August 1990
- Bibcode:
- 1990Ge&Ae..30..550B
- Keywords:
-
- Interplanetary Magnetic Fields;
- Solar Activity;
- Solar Longitude;
- Twenty-Seven Day Variation;
- Solar Cycles;
- Solar Rotation;
- Sunspots;
- Solar Active Regions: Interplanetary Plasma;
- Solar Active Regions: Space Distribution