The March 5, 1972 Solar Event: Coronal Control of Particle Release
Abstract
The time-intensity profiles of 1-9-MeV and 9-36-MeV protons observed by the ESA/SSD detector system on HEOS 2 during the March 5, 1972, event display a number of unusual features. The most prominent is a plateaulike peak lasting for almost a day. When mapping the particle fluxes back to the sun, it is seen that the plateau is caused by a large chromospheric polarity cell which is 60 to 100 deg away from the acceleration region and uniformly populated with particles. A short-lived (3 h) particle intensity increase with strong sunward flow is observed during the decay phase and tentatively associated with a magnetic loop-type structure in the interplanetary medium.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- 1977
- Bibcode:
- 1977ICRC....5..107R
- Keywords:
-
- Interplanetary Magnetic Fields;
- Proton Flux Density;
- Satellite Observation;
- Solar Corona;
- Solar Protons;
- Solar Wind Velocity;
- Chromosphere;
- Energetic Particles;
- Heos B Satellite;
- Interplanetary Medium;
- Solar Activity Effects;
- Solar Physics