DOES ION TEARING EXIST

被引:209
作者
PELLAT, R
CORONITI, FV
PRITCHETT, PL
机构
[1] UNIV CALIF LOS ANGELES,DEPT AGRON,LOS ANGELES,CA 90024
[2] UNIV CALIF LOS ANGELES,DEPT GEOPHYS & PLANETARY PHYS,LOS ANGELES,CA 90024
关键词
D O I
10.1029/91GL00123
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
In a quasi-neutral sheet the tearing mode is strongly stabilized by electron compressibility. We demonstrate that previous attempts to remove the compressibility by wave turbulent pitch-angle scattering or by non-adiabatic stochastic first invariant diffusion are incorrect since these processes do not change the perturbed number of particles on a flux tube. Only spatial diffusion of electrons across magnetic flux surfaces can remove the stabilizing effect of compressibility; in this case, the electron, but not the ion, tearing mode may exist.
引用
收藏
页码:143 / 146
页数:4
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