Relativistic electron acceleration and precipitation during resonant interactions with whistler-mode chorus
نویسندگان
چکیده
منابع مشابه
Resonant scattering of plasma sheet electrons by whistler-mode chorus: Contribution to diffuse auroral precipitation
[1] A quantitative analysis is presented of the resonant scattering of plasma sheet electrons ( 100 eV–20 keV) at L = 6 due to resonant interactions with whistler-mode chorus. Using wave parameters modeled from observations under geomagnetically disturbed conditions, it is demonstrated that the rate of pitch angle scattering can exceed the level of strong diffusion over a broad energy range (20...
متن کاملMultistation observations of ELF/VLF whistler mode chorus
[1] An array of seven ELF/VLF receivers in Alaska is utilized for direction finding and determination of ionospheric exit point of whistler mode chorus waves from the Earth’s magnetosphere. Each receiver records both orthogonal horizontal magnetic components of the chorus waves. All sites use GPS-synchronized sampling, allowing for the localization of ionospheric exit points utilizing both arri...
متن کاملEnhanced Phase Space Diffusion due to Chaos in Relativistic Electron - Whistler Mode Wave Particle Interactions with Applications
Using numerical solutions of single particle dynamics, we consider a chaotic electron-whistler interaction mechanism for enhanced diffusion in phase space. This process, when applied to parameters consistent with the Jovian magnetosphere, is a candidate mechanism for pitch angle scattering in the Io torus, thus providing a source of auroral precipitating electrons. We initially consider the int...
متن کاملElectron hybrid code simulation of whistler-mode chorus generation with real parameters in the Earth’s inner magnetosphere
We carry out a self-consistent simulation of the generation process of whistler-mode chorus by a spatially one-dimensional electron hybrid code, by assuming the magnetic field inhomogeneity corresponding to L = 4 of the dipole field. Chorus emissions with rising tones are reproduced in the simulation result, while the frequency range, sweep rate, and the amplitude profiles in the spectra of the...
متن کاملTheoretical and numerical analysis of radiation belt electron precipitation by coherent whistler mode waves
The interaction between coherent whistler mode waves and energetic radiation belt electrons can result in pitch angle scattering of electrons into the bounce loss cone and subsequent precipitation. In studying the effects of VLF transmitter signals on particle precipitation, past modeling efforts have focused on the computation of diffusion coefficients for a Fokker-Planck model. In contrast, t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2003
ISSN: 0094-8276
DOI: 10.1029/2003gl016973