1,1,4,3,3,- 1State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China
- 2College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
- 3Swedish Institute of Space Physics, Uppsala, Sweden
- 4Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, China
High-speed electron flows (HSEFs) are widely regarded as a significant source of various plasma waves and instabilities, which can subsequently interact with electrons and significantly impact electron dynamics. Using high-resolution data from the Magnetospheric Multiscale (MMS) mission, Liu et al. (2025) collected HSEFs in the Earth's magnetotail from 2017 to 2021, proving an excellent basis for a statistical investigation of associated plasma waves. Here, we perform a statistical investigation of the plasma waves in and out of the plasma sheet, respectively. In the plasma sheet, the observed fluctuations, including upper-hybrid waves, broadband electrostatic waves (BEWs), and low-frequency electrostatic waves, are mainly associated with perpendicular-moving electrons. Out of the plasma sheet, MMS observed Langmuir waves, BEWs, and low-frequency electrostatic fluctuations, primarily related to field-aligned electrons. The association of the observed plasma waves with magnetic reconnection is also discussed.
How to cite: Liu, H., Li, W., Tang, B., Norgren, C., Liu, K., Graham, D., Khotyaintsev, Y. V., and Wang, C.: Plasma waves in the high-speed electron flows, EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-15653, https://doi.org/10.5194/egusphere-egu26-15653, 2026.
