Journal Article10.1029/2006GL026765
Heavy ion acceleration in the divergent solar wind
TL;DR: In this paper, the authors studied the heavy ion acceleration due to cyclotron interaction with both right and left-hand polarized MHD waves propagating along the magnetic field in the outward direction in the divergent solar wind.
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Abstract: [1] We study the heavy ion acceleration due to cyclotron interaction with both right- and left-hand polarized MHD waves propagating along the magnetic field in the outward direction in the divergent solar wind. It is shown in test-particle approximation that heavy ions can overcome the gap between the maximum resonant velocity for left-handed waves and minimum resonant velocity for right-handed waves and acquire the average parallel velocity on the order of local Alfven speed relative to the protons.
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Citations
Observation of fast-ion Doppler-shifted cyclotron resonance with shear Alfvén waves
Yang Zhang,W. W. Heidbrink,H. Boehmer,Roger McWilliams,Stephen Vincena,Troy Carter,Walter Gekelman,D. Leneman,Patrick Pribyl +8 more
TL;DR: The Doppler-shifted cyclotron resonance between fast ions and shear Alfven waves is experimentally investigated in this paper, where a collimated fast-ion energy analyzer measures the nonclassical spreading of the beam, which is proportional to the resonance with the wave.
Doppler-shifted cyclotron resonance of fast ions with circularly polarized shear Alfvén waves
Yang Zhang,W. W. Heidbrink,Shu Zhou,H. Boehmer,Roger McWilliams,Troy Carter,Stephen Vincena,Matthew Lilley +7 more
TL;DR: In this paper, the Doppler-shifted cyclotron resonance between fast ions and shear Alfven waves (SAWs) has been experimentally investigated with a test-particle fast-ion (Li+) beam launched in the helium plasma of the Large Plasma Device.
On apparent temperature in low-frequency Alfvenic turbulence
TL;DR: In this article, a low-frequency, parallel propagating Alfvenic turbulence in collisionless plasmas is theoretically studied and the conservation of the total "apparent temperature" corresponds to the Bernoulli law.
9
Heavy ion heating due to interactions with outward and inward alfven wave packets
V. L. Galinsky,V. I. Shevchenko +1 more
TL;DR: In this paper, simultaneous cyclotron interactions of heavy ions with outward and inward-propagating Alfven wave packets in the solar wind was self-consistently conducted with wave-packet dynamics.
4
Heavy Ion Acceleration by Super-Alfvenic Waves.
TL;DR: In this article, a generation mechanism of super Alfvenic (SPA) waves in multi-ion species plasma is proposed and the associated heavy ion acceleration process is discussed, where large amplitude proton cyclotron waves, excited due to proton temperature anisotropy, nonlinearly destabilize SPA waves through parametric decay instability in a three component plasma composed of electrons, protons, and $\alpha$ particles.
2
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Ion cyclotron diffusion of velocity distributions in the extended solar corona
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Nonlinear cyclotron resonant wave-particle interaction in a nonuniform magnetic field
TL;DR: Quasilinear analysis of wave-particle interactions is presented for plasma flowing in a weakly nonuniform magnetic field configuration, allowing one to obtain large scale solutions for both particle distribution functions and wave spectra, without going into the details of the small scale quasil inear relaxation.
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Mirroring in the Fokker-Planck coefficient for cosmic-ray pitch-angle scattering in homogeneous magnetic turbulence
TL;DR: In this paper, the Fokker-Planck coefficient for pitch-angle scattering, appropriate for cosmic rays in homogeneous stationary magnetic turbulence is computed without making any specific assumptions concerning the statistical symmetries of the random field.
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•Journal Article
Quasilinear theory of plasma cyclotron instability
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