Observation of spatial and temporal variations in X-ray bright point emergence patterns
Abstract
Observations of X-ray bright points (XBP) over a six-month interval in 1973 show significant variations in both the number density of XBP as a function of heliographic longitude and in the full Sun average number of XBP from one rotation to the next. The observed increases in XBP emergence are estimated to be quivalent to several large active regions emerging per day for several months. The number of XBP emerging at high latitudes also varies, in phase with the low latitude variation and reaches a maximum approximately simultaneous with a major outbreak of active regions. The quantity of magnetic flux emerging in the form of XBP at high latitudes alone is estimated to be as large as the contribution from all active regions.
- Publication:
-
Solar Physics
- Pub Date:
- November 1976
- DOI:
- 10.1007/BF00155294
- Bibcode:
- 1976SoPh...50..311G
- Keywords:
-
- Astronomical Photography;
- Magnetic Flux;
- Solar Corona;
- Solar X-Rays;
- Spectroheliographs;
- X Ray Spectra;
- Density Distribution;
- Error Analysis;
- Life (Durability);
- Solar Activity;
- Solar Cycles;
- Solar Physics;
- Temporal Variation;
- Significant Variation;
- Active Region;
- High Latitude;
- Emergence Pattern