Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10701037 | Chinese Astronomy and Astrophysics | 2005 | 9 Pages |
Abstract
Instability of whistler wave in collisionless current sheet is studied with numerical solution of the general dispersion relation obtained in Ref.[4] for the physical model A. As revealed by the results, the whistler wave can be directly absorbed by collisionless current sheets. On the neutral sheet (z/di = 0) oblique whistler waves over a rather wide range of wave numbers can propagate, while they are basically stable. In the ionic inertial region (z/di < 1), the obliquely propagating whistler wave is unstable. On the edge of the ionic inertial region (z/di = 1), the whistler wave is still unstable, with an increase in the growth rate, and in the frequency of the unstable wave. The growth rate is larger for the whistler wave propagating towards the neutral sheet (kzdi < 0) than away from the neutral sheet (kzdi > 0).
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
Zhou Guo-cheng, Wei Xin-hua, Cao Jin-bin, Wang De-ju, Cai Chun-lin,