期刊论文

Si Liu

英文

PHYSICS OF PLASMAS

1070-664X

2023

30

3

032902

10.1063/5.0135320

National Natural Science Foundation of China [42230209, 42274212, 41804171, 41974212]; Natural Science Foundation of Hunan Province [2021JJ20010]; Science and Technology Innovation Program of Hunan Province [2021RC3098]; Foundation of Education Bureau of Hunan Province for Distinguished Young Scientists [20B004]

本校为第一机构

Electron cyclotron harmonic (ECH) waves, contributing significantly to magnetospheric dynamics, usually appear as a series of harmonics between the multiples of electron gyrofrequency. Previous studies have demonstrated that ECH waves are the electron Bernstein mode excited by the electron loss cone distribution. To investigate how the electron distribution controls the frequency and wave normal angle of excited ECH waves, we derive a concise analytic formula for ECH growth rates using the bi-Maxwellian distribution. Parametric studies show that the expansion of the loss cone size could effect...