scholarly journals Triggering process of electromagnetic ion cyclotron rising tone emissions in the inner magnetosphere

2013 ◽  
Vol 118 (9) ◽  
pp. 5553-5561 ◽  
Author(s):  
Masafumi Shoji ◽  
Yoshiharu Omura
Keyword(s):  
Inner Magnetosphere ◽  
Ion Cyclotron ◽  
Triggering Process

scholarly journals Ion Heating by Electromagnetic Ion Cyclotron Waves and Magnetosonic Waves in the Earth's Inner Magnetosphere

2019 ◽  
Vol 46 (12) ◽  
pp. 6258-6267 ◽  
Author(s):  
Q. Ma ◽  
W. Li ◽  
C. Yue ◽  
R. M. Thorne ◽  
J. Bortnik ◽  
...  
Keyword(s):  
Ion Heating ◽  
Inner Magnetosphere ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron ◽  
Electromagnetic Ion Cyclotron Waves

scholarly journals Convective amplification of electromagnetic ion cyclotron waves from ring-distribution protons in the inner magnetosphere

2013 ◽  
Vol 118 (12) ◽  
pp. 7538-7544 ◽  
Author(s):  
Manish Mithaiwala ◽  
Chris Crabtree ◽  
Gurudas Ganguli ◽  
Leonid Rudakov ◽  
Kunihiro Keika
Keyword(s):  
Inner Magnetosphere ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron ◽  
Electromagnetic Ion Cyclotron Waves

Visualization of ion cyclotron wave and particle interactions in the inner magnetosphere via THEMIS-ASI observations

2012 ◽  
Vol 117 (A10) ◽  
pp. n/a-n/a ◽  
Author(s):  
K. Sakaguchi ◽  
Y. Miyoshi ◽  
E. Spanswick ◽  
E. Donovan ◽  
I. R. Mann ◽  
...  
Keyword(s):  
Particle Interactions ◽  
Inner Magnetosphere ◽  
Ion Cyclotron

scholarly journals Model of electromagnetic ion cyclotron waves in the inner magnetosphere

2014 ◽  
Vol 119 (9) ◽  
pp. 7541-7565 ◽  
Author(s):  
K. V. Gamayunov ◽  
M. J. Engebretson ◽  
M. Zhang ◽  
H. K. Rassoul
Keyword(s):  
Inner Magnetosphere ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron ◽  
Electromagnetic Ion Cyclotron Waves

Excitation of Oxygen Ion Cyclotron Harmonic Waves in the Inner Magnetosphere

2021 ◽  
Author(s):  
Kaijun Liu ◽  
Kyungguk Min ◽  
Bolu Feng ◽  
Yan Wang
Keyword(s):  
Cyclotron Frequency ◽  
Three Dimensional ◽  
Harmonic Waves ◽  
Inner Magnetosphere ◽  
Oxygen Ions ◽  
Oxygen Ion ◽  
Ion Cyclotron ◽  
Svd Method ◽  
The Waves ◽  
Cyclotron Harmonic

<p>Oxygen ion cyclotron harmonic waves, with discrete spectral peaks at multiple harmonics of the oxygen ion cyclotron frequency, have been observed in the inner magnetosphere. Their excitation mechanism has remained unclear, because the singular value decomposition (SVD) method commonly used in satellite wave data analysis suggests that the waves have quasi-parallel propagation, whereas plasma theory reveals unstable modes at nearly perpendicular propagation. Hybrid simulations are carried out to investigate the excitation of these waves. The simulation results show that waves at multiple harmonics of the oxygen ion cyclotron frequency can be excited by energetic oxygen ions of a ring-like velocity distribution. More importantly, analyzing the simulated waves in a three-dimensional simulation using the common SVD method demonstrates that, while the excited waves have quasi-perpendicular propagation, the superposition of multiple waves with different azimuthal angles causes the SVD method to yield incorrectly small wave normal angles. In addition, the scattering of oxygen ions by the excited waves is examined in the simulations. The waves can cause significant transverse heating of the relatively cool background oxygen ions, through cyclotron resonance. The waves may also scatter energetic radiation belt electrons through bounce resonance and transit time scattering, like fast magnetosonic waves.</p>

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