2014/01/24 by Johan Anderson, H. Nordman, Anderson, Johan +3
Earth and Planetary Sciences · Physics and Astronomy · #FOS: Physical sciences #Ionosphere and magnetosphere dynamics #Plasma Physics (physics.plasm-ph) #Solar and Space Plasma Dynamics #Underwater Acoustics Research
paper · pdf · doi:10.48550/arxiv.1401.6300
openalex publication_date 2014/01/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The effects higher order harmonics have been self-consistently included in the derivation of the electron branch of the electron Geodesic Acoustic Mode (el-GAM) in an Electron-Temperature-Gradient (ETG) turbulence background. The work is based on a two-fluid model including finite β-effects while retaining non-adiabatic ions. In solving the linear dispersion relation, it is found that the due to the coupling to the m=2 mode the real frequency may be significantly altered and yield higher values.