Results 21 to 30 of about 994 (229)

Connection Between Chorus Wave Amplitude and Background Magnetic Field Inhomogeneity: A Parametric Study

Geophysical Research Letters, 2023
Whistler mode chorus waves frequently appear as discrete, repetitive, and quasi‐monochromatic emissions with frequency chirping. With different wave amplitude and frequency chirping rate, chorus waves have been observed not only in the magnetosphere of ...
Zeyin Wu, Hua Huang, Yifan Wu, Xin Tao, Yuto Katoh, Xiaogang Wang   +5 more
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Generation of Realistic Short Chorus Wave Packets

Geophysical Research Letters, 2021
AbstractMost lower‐band chorus waves observed in the inner magnetosphere propagate under the form of moderately intense short wave packets with fast frequency and phase variations. Therefore, understanding the formation mechanism of such short wave packets is crucial for accurately modeling electron nonlinear acceleration or precipitation into the ...
D. Nunn, X.‐J. Zhang, D. Mourenas, A. V. Artemyev   +3 more
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Statistical Investigation of the Frequency Dependence of the Chorus Source Mechanism of Plasmaspheric Hiss

Geophysical Research Letters, 2021
We use data from eight satellites to statistically examine the role of chorus as a potential source of plasmaspheric hiss. We find that the strong equatorial (|λm| 
Nigel P. Meredith, Jacob Bortnik, Richard B. Horne, Wen Li, Xiao‐Chen Shen   +4 more
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Distribution and Evolution of Chorus Waves Modeled by a Neural Network: The Importance of Imbalanced Regression

Space Weather, 2023
Whistler‐mode chorus waves play an essential role in the acceleration and loss of energetic electrons in the Earth’s inner magnetosphere, with the more intense waves producing the most dramatic effects. However, it is challenging to predict the amplitude
Xiangning Chu, Jacob Bortnik, Wen Li, Xiao‐Chen Shen, Qianli Ma, Donglai Ma, David Malaspina, Sheng Huang   +7 more
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Field-aligned chorus wave spectral power in Earth's outer radiation belt [PDF]

Annales Geophysicae, 2015
Chorus-type whistler waves are one of the most intense electromagnetic waves generated naturally in the magnetosphere. These waves have a substantial impact on the radiation belt dynamics as they are thought to contribute to electron acceleration and ...
H. Breuillard, H. Breuillard, O. Agapitov, O. Agapitov, A. Artemyev, E. A. Kronberg, S. E. Haaland, P. W. Daly, V. V. Krasnoselskikh, D. Boscher, S. Bourdarie, Y. Zaliznyak, G. Rolland   +12 more
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Radiation belt electron scattering by whistler-mode chorus in the Jovian magnetosphere: Importance of ambient and wave parameters

Earth and Planetary Physics, 2018
Whistler-mode chorus waves are regarded as an important acceleration mechanism contributing to the formation of relativistic and ultra-relativistic electrons in the Jovian radiation belts.
BinBin Ni, Jing Huang, YaSong Ge, Jun Cui, Yong Wei, XuDong Gu, Song Fu, Zheng Xiang, ZhengYu Zhao   +8 more
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A statistical study of the spatial distribution and source-region size of chorus waves using Van Allen Probes data [PDF]

Annales Geophysicae, 2018
The spatial distribution and source-region size of chorus waves are important parameters for understanding their generation. In this work, we analyze over 3 years of continuous wave burst-mode data from the Van Allen Probes mission and build a data ...
S. Teng, S. Teng, X. Tao, X. Tao, W. Li, W. Li, Y. Qi, Y. Qi, Y. Qi, X. Gao, X. Gao, L. Dai, Q. Lu, Q. Lu, S. Wang, S. Wang   +15 more
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Evaluating the performance of empirical models of total electron density and whistler-mode wave amplitude in the Earth’s inner magnetosphere

Frontiers in Astronomy and Space Sciences, 2023
Empirical models have been previously developed using the large dataset of satellite observations to obtain the global distributions of total electron density and whistler-mode wave power, which are important in modeling radiation belt dynamics.
Qianli Ma, Qianli Ma, Xiangning Chu, Donglai Ma, Sheng Huang, Wen Li, Jacob Bortnik, Xiao-Chen Shen   +7 more
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Chorus Wave Modulation of Langmuir Waves in the Radiation Belts [PDF]

Geophysical Research Letters, 2017
AbstractUsing high‐resolution waveforms measured by the Van Allen Probes, we report a novel observation in the radiation belts. Namely, we show that multiband, discrete, rising‐tone whistler mode chorus emissions exhibit a one‐to‐one correlation with Langmuir wave bursts.
Jinxing Li, Jacob Bortnik, Xin An, Wen Li, Richard M. Thorne, Meng Zhou, William S. Kurth, George B. Hospodarsky, Herbert O. Funsten, Harlan E. Spence   +9 more
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Excitation of chorus with small wave normal angles due to beam pulse amplifier (BPA) mechanism in density ducts [PDF]

Annales Geophysicae, 2019
We examine specific features of the realisation of the beam pulse amplifier (BPA) mechanism of chorus excitation in the density ducts that have a width of the order of 100–300 km with refractive reflection.
P. A. Bespalov, P. A. Bespalov, O. N. Savina   +2 more
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