Physics
Scientific paper
Jun 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977cosp.meetr....l&link_type=abstract
COSPAR, Plenary Meeting, 20th, Tel Aviv, Israel, June 7-18, 1977, Paper. 11 p.
Physics
High Energy Electrons, Particle Acceleration, Solar Corona, Type 2 Bursts, Type 4 Bursts, Electron Beams, Magnetic Field Configurations, Solar Magnetic Field, Type 3 Bursts
Scientific paper
Radio observations with a high spectral and temporal resolution are used to show that local accelerations in the corona occurred in relationship with type II-type IV burst emission. These accelerations appeared as an emission of drifting structures superimposed on the continuum emission of the type IV burst. All the observations gathered in the optical range lead one to conclude that the phenomenon involves a transient propagating through a magnetic arch configuration. The following drifting structures have been identified: in the high frequency range (25-45 MHz) beams of electrons of high energy propagating downwards in the magnetic field give rise to type III burst emission with a positive drift rate. Narrow-band short lived bursts are then observed (60-70 MHz).
Aubier M.
Leblanc Yolanda
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