Physics
Scientific paper
May 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...71..115s&link_type=abstract
Solar Physics, vol. 71, May 1981, p. 115-124.
Physics
17
Particle Acceleration, Plasma Heating, Solar Flares, Solar Physics, Tearing Modes (Plasmas), Coronal Loops, Electric Fields, Electrical Resistivity, Particle Collisions, Solar Electrons, Solar Prominences, Solar Temperature, Solar X-Rays, Thermal Plasmas
Scientific paper
A simple but physically consistent model of heating and particle acceleration by fast tearing modes is developed for modeling compact loop flares or erupting prominences. It is shown that there is a slow preheating, over many e-foldings of the instability, after which a rapid heating takes place in approximately one e-folding. The role of anomalous resistivity excited by the induced electric field during tearing is discussed, and how both thermal conduction and plasma expansion may play a role in cooling is considered. Estimates for the total number of thermal and nonthermal electrons generated by one fast tearing mode are given, and it is argued that collisional tearing modes give rise to a primarily thermal plasma.
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