A simple stochastic model of electron diffusion by whistler waves in a non-uniform magnetic field

Yasuhiro Nariyuki

Presentation information

[E] Oral

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM15] Plasma Theory and Simulation

convener:Seiji Zenitani(Kobe University), Fan Guo(Los Alamos National Laboratory), Takayuki Umeda(Institute for Space-Earth Environmental Research, Nagoya University), Takanobu Amano(Department of Earth and Planetary Science, University of Tokyo), Yasuhiro Nariyuki(Faculty of Education, University of Toyama)

[PEM15-06] A simple stochastic model of electron diffusion by whistler waves in a non-uniform magnetic field

*Yasuhiro Nariyuki¹ (1.Faculty of Education, University of Toyama)

Keywords:electron diffusion, whistler wave, stochastic model

Scattering/acceleration of electrons by electromagnetic waves is a fundamental process to generate relativistic electrons in the inner magnetosphere. Although quasi-linear theories have widely been used to discuss the electron diffusion, the significance of nonlinear wave-particle interactions is also commonly recognized. Recently, we proposed a simple model of the charged particle diffusion including both stochastic and coherent processes [Nariyuki, POP, 2019]. In this presentation, we apply the model to electron diffusion in a simplified dipole magnetic field. Dependence of pitch-angle diffusion on parameters is discussed in detail.