Physics
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...88..257d&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 88, Oct. 1983, p. 257-273. Research supported by the Koninklijke Nederlandse Akademie van W
Physics
27
Coronal Loops, High Energy Electrons, Plasma Heating, Solar Electrons, Solar Flares, Energy Absorption, Plasma Density, Plasma-Particle Interactions, Solar Temperature, Solar X-Rays
Scientific paper
The manner in which a large, flaring loop's plasma responds to the injection of energetic electrons is investigated in the case of the November 5, 1980 solar flare, comparing observations with the results of a one-dimensional numerical simulation in which it is assumed that the plasma is in an equilibrium state at the time when injection begins. The importance of fast electron penetration depth, by comparison to the depth of the transition layer, is noted for the evolution of the impulsively heated plasma. The heating of the plasma through beam energy absorption can be understood in view of a constant density approximation. The present numerical simulation shows that impulsive heating by nonthermal electrons alone cannot explain the large loop density increase observed during the flare. It is therefore required that either continuous energy and/or mass inputs occur after the impulsive phase.
Duijveman A.
Somov Boris V.
Spektor A. R.
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