Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..56...89h&link_type=abstract
Astrophysics and Space Science, vol. 56, no. 1, June 1978, p. 89-107. Research supported by the National Scientific and Educati
Astronomy and Astrophysics
Astrophysics
10
Magnetically Trapped Particles, Magnetohydrodynamic Waves, Plasma Layers, Solar Flares, Ion Density (Concentration), Solar Electrons, Solar Protons, Vlasov Equations
Scientific paper
The Vlasov equations for ions and electrons are used to develop a theory of a double layer in which there are both free and trapped electrons and ions. The equations which replace the Langmuir condition and the Bohm conditions are found, the resultant differential equation is solved numerically, and the potential distribution in the layer is found for particular choices of distribution functions. The applicability of this theory to solar flares is discussed, and it is shown that conditions in solar flares may be such that double layers can exist for which the free particles have a power-law energy distribution. These particles will be accelerated in a double layer and may in this way account for the production of high-energy particles during the impulsive phase of solar flares.
Hasan Sirajul S.
Ter Haar D.
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