High-frequency waves in a hot plasma in a moderately strong magnetic field

被引：0
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作者：
V. G. Ledenev
V. V. Tirsky
机构：
[1] Institute of Solar-Terrestrial Physics of the Siberian Branch of the Russian Academy of Sciences,
[2] Irkutsk Branch of the Institute of Laser Physics of the Siberian Branch of the Russian Academy of Sciences,undefined
来源：
Radiophysics and Quantum Electronics | 2008年 / 51卷
关键词：
Longitudinal Wave; Solar Corona; Anomalous Dispersion; Whistler Wave; Magnetoacoustic Wave;
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学科分类号：
摘要：
Based on a numerical analysis of the dispersion relation for a hot magnetoplasma, we study the spectra of weakly damped high-frequency waves propagating in such a plasma in the case where the electron cyclotron frequency is higher than or equal to the plasma frequency. It is shown that with increasing magnetic field, the branches of the ordinary and slow extraordinary waves approach each other and become almost identical in wide ranges of frequencies and angles. A branch of waves with anomalous dispersion can appear if the angles between the wave vector and the magnetic field are close to 90°.
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