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Hard X-ray and radio investigations prior to or during the impulsive phase of solar flares
- Source :
- Advances in Space Research. 4:175-178
- Publication Year :
- 1984
- Publisher :
- Elsevier BV, 1984.
-
Abstract
- The comparative study of radiation in the different spectral ranges, including X-ray and radio observations, can establish constraints for the electron acceleration/injection mechanisms. This paper will focus on the activity prior and during the impulsive phase of solar flares. Observations give evidence for electron acceleration prior the impulsive phase. The association between type III groups and hard X-ray bursts becomes closer with increasing starting frequency of the former observed during the impulsive phase. It is shown that pure type III burst groups, when they are X-ray associated, do not correspond to an intense X-ray emission. At the opposite, the type III/V events can be associated with strong X-ray emission. Radioheliograph observations bring constraints on the geometry of the injection/acceleration site.
- Subjects :
- Physics
Atmospheric Science
X-ray astronomy
Solar flare
Solar energetic particles
Astrophysics::High Energy Astrophysical Phenomena
Phase (waves)
Aerospace Engineering
Astronomy and Astrophysics
Astrophysics
Solar physics
Electromagnetic radiation
Acceleration
Geophysics
Space and Planetary Science
General Earth and Planetary Sciences
Radio astronomy
Subjects
Details
- ISSN :
- 02731177
- Volume :
- 4
- Database :
- OpenAIRE
- Journal :
- Advances in Space Research
- Accession number :
- edsair.doi...........116333b42e6c7b0995ad618be54326f3