ELECTRON-CYCLOTRON MASER EMISSION FROM STREAMING DISTRIBUTIONS

被引:3
作者
WILLES, AJ [1 ]
ROBINSON, PA [1 ]
机构
[1] UNIV SYDNEY,SCH PHYS,THEORET ASTROPHYS RES CTR,SYDNEY,NSW 2006,AUSTRALIA
基金
澳大利亚研究理事会;
关键词
D O I
10.1017/S0022377800017402
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Motivated by the need to explain observed elliptically polarized emission from Jupiter, the mechanism of electron-cyclotron maser emission is considered for drifting electron distributions, where the electrons stream with a non-zero mean velocity parallel to the magnetic field lines. An analytical expression for the semirelativistic growth rate is derived and its properties analysed in detail for waves generated in the magneto-ionic modes. The main features of the growth rate are discussed, on the basis of a geometric analysis using resonant ellipses.
引用
收藏
页码:75 / 93
页数:19
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