Results 201 to 210 of about 2,661,724 (245)

Prompt Appearance of Large‐Amplitude EMIC Waves Induced by Solar Wind Dynamic Pressure Enhancement and the Subsequent Relativistic Electron Precipitation

Journal of Geophysical Research: Space Physics, 2023
Electromagnetic ion cyclotron (EMIC) waves play an important role in relativistic electron dynamics. In this study, we find a large‐amplitude EMIC wave event induced by the prompt enhancement of solar wind dynamic pressure on 6 November 2015. These large‐
Yun Yan, C. Yue, Q. Ma, Xuzhi Zhou, Q. Zong, Haobo Fu, Zi‐Kang Xie, Z. Yin, Yuxuan Li   +8 more
semanticscholar   +1 more source

Study of temperature anisotropy and kappa distribution impacts on EMIC waves in multi-species magnetized plasma

Annals of Geophysics
. This research investigates the impact of temperature anisotropy on electromagnetic ion cyclotron (EMIC) waves in a multi-ion magneto-plasma environment composed of H+, He+, and O+ ions, with a particular emphasis on the role of the kappa distribution ...
Rahul Bhaisaniya, G. Ahirwar
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Further Evidence for the Organizing Role of the Plasmapause in the Nightside Distribution of Pc1/EMIC Waves

International Symposium on Computational Intelligence and Informatics
In a recently published paper, we investigated the spatial distribution of Pc1/EMIC waves in the topside ionosphere based on the high-frequency (HF) magnetometer measurements of the ESA Swarm A satellite, and showed that the appearance of these waves ...
Tamás Bozóki, B. Heilig
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A Parametric Study of the Landau Resonance Scattering Rates of Electrons by H+ Band EMIC Waves

Journal of Geophysical Research: Space Physics
Landau resonance by electromagnetic ion cyclotron (EMIC) waves is considered to be one of the potential mechanisms responsible for the heating and acceleration of electrons in the range of eV to keV.
A. Ren, Jiang Yu, Xiaoman Liu, Jing Wang, Zuzheng Chen, Liuyuan Li, J. Cui, Jinbin Cao   +7 more
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Geomagnetic storms and EMIC waves: Van Allen Probe observations

Journal of Geophysical Research: Space Physics, 2016
AbstractUtilizing the data from magnetometer instrument of Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) suite on board Van Allen Probe A, the occurrences of electromagnetic ion cyclotron (EMIC) waves during geomagnetic storms and nonstorm periods are investigated.
Dedong Wang, Zhigang Yuan, Xiongdong Yu, Shiyong Huang, Xiaohua Deng, Meng Zhou, Haimeng Li   +6 more
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Characteristics of Subpacket Structures in Ground EMIC Wave Observations

Journal of Geophysical Research: Space Physics, 2018
AbstractRecent studies using satellite observations have reported that subpacket structures play an important role in determining the characteristics of electromagnetic ion cyclotron (EMIC) rising/falling tone emissions. The purpose of the present study is to investigate the subpacket structure characteristics in the ground observations of the EMIC ...
Bharati Kakad, Yoshiharu Omura, Amar Kakad, Aditi Upadhyay, Ashwini K. Sinha   +4 more
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Ion Injection Triggered EMIC Waves in the Earth's Magnetosphere

Journal of Geophysical Research: Space Physics, 2018
AbstractWe present Van Allen Probe observations of electromagnetic ion cyclotron (EMIC) waves triggered solely due to individual substorm‐injected ions in the absence of storms or compressions of the magnetosphere during 9 August 2015. The time at which the injected ions are observed directly corresponds to the onset of EMIC waves at the location of ...
B. Remya, D. G. Sibeck, A. J. Halford, K. R. Murphy, G. D. Reeves, H. J. Singer, J. R. Wygant, G. Farinas Perez, S. A. Thaller   +8 more
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Resonant Interactions Between Relativistic Electrons and EMIC Waves Modified by Partial Shell Proton Velocity Distributions

Journal of Geophysical Research: Space Physics
Resonant interactions of relativistic electrons with electromagnetic ion cyclotron (EMIC) waves were previously considered under the cold plasma approximation or in hot plasmas with bi‐Maxwellian distributions.
Jiang Yu, A. Ren, Zhaoguo He, Xiaoman Liu, Jing Wang, N. Liu, Zuzheng Chen, Liuyuan Li, J. Cui, Jinbin Cao   +9 more
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A statistical study of EMIC waves observed by Cluster: 1. Wave properties

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014
Electromagnetic ion cyclotron (EMIC) waves are an important mechanism for particle energization and losses inside the magnetosphere. In order to better understand the effects of these waves on particle dynamics, detailed information about the ellipticity, normal angle, energy propagation angle distributions, and local plasma parameters are required ...
R. C. Allen, J.-C. Zhang, L. M. Kistler, H. E. Spence, R.-L. Lin, B. Klecker, M. W. Dunlop, M. André   +7 more
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Observation and Numerical Simulation of Cold Ions Energized by EMIC Waves

Journal of Geophysical Research: Space Physics
This is the first report of significant energization (up to 7,000 eV) of low‐energy He+ ions, which occurred simultaneously with H‐band electromagnetic ion cyclotron (EMIC) wave activity, in a direction mostly perpendicular to the ambient magnetic field.
Khan‐Hyuk Kim, C. Jun, Jong‐Woo Kwon, J. Lee, K. Shiokawa, Y. Miyoshi, E.‐H. Kim, K. Min, J. Seough, K. Asamura, I. Shinohara, A. Matsuoka, S. Yokota, Y. Kasahara, S. Kasahara, T. Hori, K. Keika, A. Kumamoto, F. Tsuchiya   +18 more
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