Spatial-temporal regularities in the distribution of the green and red solar corona
Abstract
A reduction of diurnal values of the coronal intensity at 5303 A and 6374 A in a 22-yr solar cycle (1959-1981) is performed. An analysis is made of the spatial structure of relative excitations of the coronal emission at different latitudes in connection with the similar structure of sunspot activity, as well as the temporal migration of its elements in the 22-yr cycle in connection with the equatorward migration and poleward migration of the neutral line of unipolar regions. An antiphase is found in 11-yr variations of T ionization, evaluated on the basis of the relative intensity of 5303 A and 6374 A in circumpolar 30-deg zones in comparison with the rest of the limb.
- Publication:
-
Izvestiya Glavnoj Astronomicheskoj Observatorii v Pulkove
- Pub Date:
- 1991
- Bibcode:
- 1991IzPul.207...12V
- Keywords:
-
- Solar Activity;
- Solar Corona;
- Solar Magnetic Field;
- Spatial Distribution;
- Sunspot Cycle;
- Temporal Distribution;
- Coronal Holes;
- Diurnal Variations;
- Solar Cycles;
- Solar Physics