3 papers
physics.space-ph2025
Streamer-like red line diffuse auroras driven by time domain structures and ECH waves associated with a plasma injection and braking ion flows
Yangyang Shen, Xu Zhang, Jun Liang +5
Auroral streamers are important meso-scale processes of dynamic magnetosphere-ionosphere coupling, typically studied using imagers sensitive to energetic (>1 keV) electron precipit…
physics.plasm-ph2024
Beam-driven Electron Cyclotron Harmonic and Electron Acoustic Waves as Seen in Particle-In-Cell Simulations
Xu Zhang, Xin An, Vassilis Angelopoulos +3
Recent study has demonstrated that electron cyclotron harmonic (ECH) waves can be excited by a low energy electron beam. Such waves propagate at moderately oblique wave normal angl…
physics.plasm-ph2021
Beam-driven ECH waves: A parametric study
Xu Zhang, Vassilis Angelopoulos, Anton V. Artemyev +1
Electron cyclotron harmonic (ECH) waves play a significant role in driving the diffuse aurora, which constitutes more than 75% of the particle energy input into the ionosphere. ECH…