Relativistic turning acceleration of radiation belt electrons by 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...
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This paper provides a brief review of the role that chorus waves play in controlling the dynamics of the Earth’s outer radiation belt. Three major topics are discussed: (i) the morphology, characteristics, and properties of chorus waves themselves, with special emphasis on more recent results, (ii) the role that chorus waves play in the loss of radiation belt particles, showing initial results ...
متن کاملGlobal model of low-frequency chorus (fLHR<f<0.1fce) from multiple satellite observations
Whistler mode chorus is an important magnetospheric emission, playing a dual role in the acceleration and loss of relativistic electrons in the Earth's outer radiation belt. Chorus is typically generated in the equatorial region in the frequency range 0.1-0.8 fce, where fce is the local electron gyrofrequency. However, as the waves propagate to higher latitudes, significant wave power can occur...
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[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...
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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...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2008
ISSN: 0148-0227
DOI: 10.1029/2007ja012478