Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...229..216h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 1, March 1990, p. 216-223.
Astronomy and Astrophysics
Astrophysics
4
Computerized Simulation, Electron Beams, Solar Corona, Solar Radiation, Type 3 Bursts, Radio Bursts, Radio Emission, Solar Magnetic Field, Spectrographs, Wave Interaction
Scientific paper
The dynamic evolution of mildly relativistic electrons (10-100 keV) propagating outward in the solar corona following open or closed magnetic lines is studied using the drift approximation. Wave-particle interactions are neglected, since the beam-plasma system is considered as almost decoupled in the range of parameters used in this model. The results of this simulation are used for the computation of observable quantities and the analysis of dynamic spectra of isolated type III or J bursts, obtained with the Digital Multichannel Radio Spectrograph of the Space Research Laboratory of Paris, Meudon. The initial velocity dispersion of the exciter and the coronal scale height are thus determined. The implications of the results on the emission processes are discussed.
Alissandrakis Constantine E.
Bougeret Jean-Louis
Caroubalos Constantine
Hillaris Alexander
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