TY - JOUR
T1 - Ordinary Electromagnetic Mode Instability
AU - Cheng, Chio Zong
N1 - Funding Information:
This work was supported in part by National Aeronautics and Space Administration grant NGL-16-001-043. The author thanks Professors David Montgomery and Donald A. Gurnett for helpful discussions and suggestions.
PY - 1975/4
Y1 - 1975/4
N2 - The instability of the ordinary electromagnetic mode, propagating perpendicular to an external magnetic field, is studied for a single-species plasma with ring velocity distribution. The marginal instability boundaries for both the purely growing mode and the propagating growing modes are calculated from the instability criteria. The dispersion characteristics for various sets of plasma parameters are also given. The frequency bands of the propagating growing modes are centered at about (n + 1/2) ωc, where n = 1, 2, and the typical growth rates are of the order of the cyclotron frequency and enhanced by increasing β.
AB - The instability of the ordinary electromagnetic mode, propagating perpendicular to an external magnetic field, is studied for a single-species plasma with ring velocity distribution. The marginal instability boundaries for both the purely growing mode and the propagating growing modes are calculated from the instability criteria. The dispersion characteristics for various sets of plasma parameters are also given. The frequency bands of the propagating growing modes are centered at about (n + 1/2) ωc, where n = 1, 2, and the typical growth rates are of the order of the cyclotron frequency and enhanced by increasing β.
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U2 - 10.1017/S002237780002609X
DO - 10.1017/S002237780002609X
M3 - Article
AN - SCOPUS:84976110986
SN - 0022-3778
VL - 13
SP - 335
EP - 348
JO - Journal of Plasma Physics
JF - Journal of Plasma Physics
IS - 2
ER -