2016/01/25 by Xin An, Bart Van Compernolle, B. Van Compernolle +5 · 40 citations
Earth and Planetary Sciences · Physics and Astronomy · #Atomic physics #Cyclotron #Cyclotron resonance #Earthquake Detection and Analysis #Electron #Excited state #Fourier transform ion cyclotron resonance #Ion #Ionosphere and magnetosphere dynamics #Magnetosphere #Nuclear physics #Physics #Plasma #Resonance (particle physics) #Solar and Space Plasma Dynamics #Whistler #astro-ph.SR #physics.plasm-ph #physics.space-ph
paper · pdf · doi:10.1002/2015gl067126
published in Geophysical Research Letters 43(6), 2413-2421 (American Geophysical Union)
openalex publication_date 2016/01/25 · arxiv created 2019/08/19 · arxiv updated 2019/08/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Abstract Chorus‐like whistler mode waves that are known to play a fundamental role in driving radiation belt dynamics are excited on the Large Plasma Device by the injection of a helical electron beam into a cold plasma. The mode structure of the excited whistler wave is identified using a phase correlation technique showing that the waves are excited through a combination of Landau resonance, cyclotron resonance, and anomalous cyclotron resonance. The dominant wave mode excited through cyclotron resonance is quasi‐parallel propagating, whereas wave modes excited through Landau resonance and anomalous cyclotron resonance propagate at oblique angles that are close to the resonance cone. An analysis of the linear wave growth rates captures the major observations in the experiment. The results have important implications for the generation process of whistler waves in the Earth's inner magnetosphere.