| Abstract: | We study the guided propagation of whistler waves along the density ducts created in a magnetoactive plasma under thermal
nonlinear conditions. It is found that the thermal diffusion-driven redistribution of plasma due to electron heating in the
quasistatic field of a current loop of fairly large radius leads to the formation of a duct with enhanced density. Based on
experimental data and theoretical calculations, it is shown that such a duct can sustain the weakly decaying whistler modes
excited by a magnetic-type antenna immersed in it.
Radiophysical Research Institute, Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia. Translated
from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 41, No. 3, pp. 384–394, March, 1998. |
