Solar Energetic Particle Observations of the 1982 June 3 and 1980 June 21 Gamma-Ray/Neutron Events
Abstract
The Helios I cosmic-ray observations of the June 3, 1982 and the June 21, 1980 gamma-ray/neutron events are analyzed. The particle intensity vs time plots for the two events are presented and the time of maximum energy spectra, and event-integrated energy spectra are examined. The H-2/H, H-3/H, and He-3/He-4 ratios and the heavy-element compositions of the two events are described. Both gamma-ray/neutron events are shown to be He-3-rich and to have heavy element enhancements that are characteristic of He-3-rich events.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- June 1990
- DOI:
- 10.1086/191464
- Bibcode:
- 1990ApJS...73..285V
- Keywords:
-
- Energetic Particles;
- Gamma Ray Spectra;
- Solar Neutrons;
- Energy Spectra;
- Heavy Elements;
- Helios 1;
- Isotope Effect;
- Particle Acceleration;
- Radiant Flux Density;
- Solar Physics;
- COSMIC RAYS: GENERAL;
- GAMMA RAYS: GENERAL;
- SUN: FLARES;
- SUN: PARTICLE EMISSION