The Acceleration of Electrons and Ions in Solar Flares
Abstract
We find that gamma-ray line (GRL) emissions start later than the hard X-ray (HXR) emissions during impulsive and extended solar flares. Starting delay is more in the case of extended solar flares suggesting a slow acceleration of electrons and ions, in comparison to impulsive solar flares which indicate different acceleration mechanism for impulsive and extended solar flares. We further infer that during solar flares, electrons and ions are accelerated simultaneously and the delay between HXR and GRL emissions results mainly due to differences in acceleration times of electrons and ions to attain energies required for producing HXR emissions for electrons and GRL emissions for ions. Therefore, we are of view that a single step acceleration mechanism may work in solar flares.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- September 1991
- DOI:
- 10.1007/BF00637728
- Bibcode:
- 1991Ap&SS.183..317V
- Keywords:
-
- Electron Acceleration;
- Gamma Rays;
- Particle Acceleration;
- Solar Electrons;
- Solar Flares;
- Solar X-Rays;
- Satellite Observation;
- Solar Maximum Mission;
- Time Lag;
- Solar Physics