High-energy particle and photon emission of solar flares
Abstract
Particle acceleration in solar flares is investigated, and examples of the apparent links between high-energy particle and photon flare emissions are presented. Energetic electromagnetic flare emissions are classified as thermal or quasi-thermal, impulsive, and prolonged nonthermal; effects of interplanetary-magnetic-field structure on the properties of energetic particles as observed near earth are summarized. General properties of soft X-ray bursts, EUV emissions, and their sources are described, the components of impulsive X-ray bursts are identified, and the role of energetic electrons in these events is examined. Effects of protons and nuclei in flare regions are discussed with respect to the production of positron emitters, neutral pi mesons, neutrons, excited nuclei, and gamma rays in nuclear reactions.
- Publication:
-
Instituto de Astronomia y Fisica del Espacio
- Pub Date:
- 1975
- Bibcode:
- 1975iafe.rept...84D
- Keywords:
-
- Far Ultraviolet Radiation;
- Nuclear Reactions;
- Particle Acceleration;
- Photons;
- Solar Flares;
- Solar Radiation;
- Solar X-Rays;
- Chromosphere;
- Interplanetary Magnetic Fields;
- Microwave Spectra;
- Particle Energy;
- Solar Activity Effects;
- Solar Atmosphere;
- Solar Corona;
- Temperature Effects;
- Time Dependence;
- Solar Physics