Abstract

Constraints are imposed on whistler generation in solar-flare loops. It is shown that the effective generation of whistlers is possible only under specific conditions: when the anisotropy of nonthermal electrons is sufficiently strong, the magnetic field is relatively weak (less than 200 G), or the plasma density is relatively high (more than 1010 cm–3). Otherwise, whistlers in flare loops will be strongly absorbed by the nonthermal electrons accelerated in the flare.

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