Results 111 to 120 of about 13,240 (212)

Electromagnetic ion cyclotron waves in the helium branch induced by multiple electromagnetic ion cyclotron triggered emissions [PDF]

Geophysical Research Letters, 2011
Masafumi Shoji, Yoshiharu Omura, Benjamin Grison, Jolene Pickett, Iannis Dandouras, Mark Engebretson   +5 more
openaire   +1 more source

Bicoherence Analysis of Oxygen Ion Cyclotron Harmonic Waves Observed by Van Allen Probes

Geophysical Research Letters
Bicoherence analysis is statistically performed for the oxygen ion cyclotron harmonic (OCH) waves observed by Van Allen Probes. While OCH waves and so‐called electromagnetic ion cyclotron harmonics have indistinguishable spectral characteristics in ...
Yan Wang, Kaijun Liu, Fei Yao, Ying Xiong   +3 more
doaj   +1 more source

A critical Mach number for electron injection in collisionless shocks

, 2010
Electron acceleration in collisionless shocks with arbitrary magnetic field orientations is discussed. It is shown that the injection of thermal electrons into diffusive shock acceleration process is achieved by an electron beam with a loss-cone in ...
K. G. McClements, M. Oka, M. A. Malkov, Masahiro Hoshino, Takanobu Amano   +4 more
core   +1 more source

EMIC wave spatial and coherence scales as determined from multipoint Van Allen Probe measurements

Geophysical Research Letters, 2016
Electromagnetic ion cyclotron (EMIC) waves can provide a strong source of energetic electron pitch angle scattering. These waves are often quite localized, thus their spatial extent can have a large effect on their overall scattering efficiency.
L. W. Blum, O. Agapitov, J. W. Bonnell, C. Kletzing, J. Wygant   +4 more
doaj   +1 more source

The electromagnetic interchange mode in a partially ionized collisional plasma [PDF]

A collisional electromagnetic dispersion relation is derived from two-fluid theory for the interchange mode coupled to the Alfven, acoustic, drift and entropy modes in a partially ionized plasma.
Hudson, M. K., Kennel, C. F.
core   +1 more source

Resonant interaction of fast particles with Alfven waves in spherical tokamaks [PDF]

, 2009
The Spherical Tokamak (ST) concept has become one of the main avenues in magneticnuclear fusion research since STs successfully demonstrated plasma operationat [Beta] = 2P[mu]0=B2~1.
Lilley, Matthew Keith, Lilley, Matthew Keith   +1 more
core  

Sub‐MeV Electron Precipitation Driven by EMIC Waves Through Nonlinear Fractional Resonances

Geophysical Research Letters
Electromagnetic ion cyclotron waves in the Earth's outer radiation belt drive rapid electron losses through wave‐particle interactions. The precipitating electron flux can be high in the hundreds of keV energy range, well below the typical minimum ...
M. Hanzelka, W. Li, M. Qin, L. Capannolo, X. Shen, Q. Ma, L. Gan, V. Angelopoulos   +7 more
doaj   +1 more source

Electromagnetic Landau Resonance: Nonlinear Dynamics and Harmonic Generation

Geophysical Research Letters
In situ particle observations provide useful information for determining the significance of nonlinearity in wave‐particle interactions. Here, we examine an electromagnetic Landau resonance event observed by the Magnetospheric Multiscale mission near the
Z.‐Y. Liu, Q.‐G. Zong, Y.‐F. Wang, J.‐H. Li, X.‐Z. Zhou, S. Wang, L. Li   +6 more
doaj   +1 more source

Ion dynamics in standing electromagnetic wave near the cyclotron resonance

Physics of Plasmas
The dynamics of ions under the forces exerted by a planar standing electromagnetic wave near the cyclotron resonance is studied. It is shown that ions whose cyclotron frequency is larger than the wave frequency are pushed by the ponderomotive force toward and oscillate around the wave magnetic node, while ions whose cyclotron frequency is smaller than ...
A. Fruchtman, G. Makrinich
openaire   +1 more source

Evidence for a Mixture of Mirror Mode and Electromagnetic Ion Cyclotron Waves in the Martian Magnetosheath

The Astrophysical Journal
Electromagnetic ion cyclotron (EMIC) and mirror-mode (MM) waves are widely observed in terrestrial and other planetary magnetosheaths. Even though linear theory supports that EMIC and MM waves may grow at comparable rates under suitable plasma conditions,
Ziyong Liu, Yasong Ge, Bruce Tsurutani, Lican Shan, Zhongwei Yang, Can Huang, Aimin Du, Jinqiao Fan   +7 more
doaj   +1 more source