The Effects of Upper-Hybrid Waves on Energy Dissipation in the Electron Diffusion Region.

ABSTRACT: Using a two-dimensional particle-in-cell simulation, we investigate the effects and roles of upper-hybrid waves (UHW) near the electron diffusion region (EDR). The energy dissipation via the wave-particle interaction in our simulation agrees with J · E ^' measured by magnetospheric multiscale (MMS) spacecraft. It means that UHW contributes to the local energy dissipation. As a result of wave-particle interactions, plasma parameters which determine the larger-scale energy dissipation in the EDR are changed. The y-directional current decreases while the pressure tensor P _{y z} increases/decreases when the agyrotropic beam density is low/high, where (x, y, z)-coordinates correspond the (L, M

SUBMITTER: Dokgo K 

PROVIDER: S-EPMC7583485 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature