Solar-polar coronal holes and the north-south cosmic ray gradient
Abstract
We show, using Skylab measures of solar polar coronal hole areas, that during non-disturbed periods the north-south gradient of galactic cosmic rays as measured at 1 AU depends upon the difference in areas of the polar coronal holes. Higher cosmic ray fluxes are observed from the polar direction with the smaller coronal hole area.
- Publication:
-
Geophysical Research Letters
- Pub Date:
- July 1978
- DOI:
- 10.1029/GL005i007p00589
- Bibcode:
- 1978GeoRL...5..589A
- Keywords:
-
- Astrophysics;
- Cosmic Rays;
- Radiation Distribution;
- Solar Corona;
- Ogo-5;
- Skylab Program;
- Solar Rotation;
- Spatial Distribution;
- Vela Satellites;
- Particles and Fields-Interplanetary Space: Cosmic rays;
- Particles and Fields-Interplanetary Space: Solar wind magnetic fields;
- Solar Physics;
- Astrophysics;
- and Astronomy: Corona;
- and Astronomy: Magnetic fields