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By D. G. Lominadze
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Additional resources for Cyclotron Waves in Plasma
56) . 57) determine the spectra of the Alfven-wave branch and of ion cyclotron oscillations in nonisothermal plasma. of electromagnetic waves, which for ω > ω Thus, the Alfven branch transform into fast ion acoustic oscil lations (discussed in ref. 9 ω 0 « ηω . LOW FREQUENCY LONGITUDINAL ELECTRON - ION PLASMA OSCILLATIONS IN A MAGNETIC FIELD Besides the ion cyclotron oscillations in plasma in a magnetic field which we have already considered, there also exist other branches of low-frequency oscil lation: oscillations of a cold plasma with characteristic frequencies of the order of the lower hybrid resonance and ion cyclotron frequencies, plus two ion acoustic oscillation branches .
4l]). 23 24 CYCLOTRON WAVES IN PLASMA Fig. 6 Dependence of the frequencies of extraordin ary ion cyclotron waves of high harmonic number (51st and 101st harmonics) on the wave vector. Curves 1 and 2 correspond respectively to $. 1 and 1. 9 r 4 6 10 frequency of this branch is close to ω — kvA ) not only when kp. is not too close to η ω Fig. 1, in the region of small kp. values. as can be seen from Fig. 6, for kp. 1 < 1 but also for kp± B. 1, the difference ay =n+ l \—y monic number, approaching some constant value value $±= 1» tne difference ing some constant value y ~ 3 and even m .
It was shown in ref.  that the high thermal conductivity of the solar wind is due to various types of wave instability and, in particular, to elec trostatic ion cyclotron wave instability (see also refs.  and ). Note that slow ion cyclotron waves are important in the study of the upper layers of the LINEAR THEORY OF CYCLOTRON WAVES IN PLASMA 27 ionosphere and in the magnetosphere [99, 100, 104, 109, 168,170] , and in thermonu clear experiments [181-190]. It was shown in refs.  and  that it is possible separately to identify the almost purely electrostatic cyclotron oscillations investigated in refs.