科研之友
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摘要
Anomalous absorption of a whistler wave, propagating through magnetized plasma in the presence of a density ripple, is investigated. The whistler induces an oscillatory velocity on electrons that beats with the density ripple to produce a quasi-mode that has an electric field component along the ambient magnetic field and is strongly Landau damped on electrons. This diversion of energy leads to anomalous absorption of the whistler. For a density ripple of 10% with suitable wave number the whistler could be severely damped, diverting its energy into heating the electrons.
- 出版日期2010-7
