Results 11 to 20 of about 782 (172)
Propagation of EMIC Waves From Shabansky Orbits in the Dayside Magnetosphere
Geophysical Research LettersWe explore the characteristics of EMIC waves generated in a non‐dipole, compressed magnetic field at the minimum of the magnetic field. We conducted 2D full‐wave simulations using the Petra‐M code, focusing on a compressed magnetic field in the outer ...
Eun‐Hwa Kim +8 more
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Sub‐MeV Electron Precipitation Driven by EMIC Waves: New Insights From CIRBE/REPTile‐2 Measurements
Geophysical Research LettersElectromagnetic ion cyclotron (EMIC) waves are recognized as a key driver of relativistic (>1 MeV) electron loss in Earth's magnetosphere. Growing evidence also suggests that EMIC wave can efficiently scatter sub‐MeV electrons, although the precise ...
Zheng Xiang +7 more
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Advances in Space Research, 2022 Abstract A recent event study suggested a coupling process whereby suprathermal protons (10–100 eV), as a result of perpendicular heating by pre-existing magnetosonic waves, can excite electromagnetic ion cyclotron (EMIC) waves with frequency near the local proton cyclotron frequency ( f ~ 0.95 f cp ).
Kyungguk Min +4 more
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Geophysical Research Letters, 2022 Nonlinear theory has predicted that wave‐wave coupling from different band electromagnetic ion cyclotron (EMIC) waves can occur in multiple‐ion plasmas. However, no direct observational evidence has been reported yet.
Dan Deng +5 more
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Geophysical Research Letters, 2023 Electromagnetic ion cyclotron (EMIC) instabilities in the inner magnetosphere are investigated with considering the effect of temperature anisotropic electrons.
Zhiqiang Wang +2 more
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Trapping and Amplification of Unguided Mode EMIC Waves in the Radiation Belt [PDF]
Journal of Geophysical Research: Space Physics, 2021 Abstract Electromagnetic ion cyclotron (EMIC) waves can cause the scattering loss of the relativistic electrons in the radiation belt. They can be classified into the guided mode and the unguided mode, according to wave's propagation behavior.
Geng Wang +7 more
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Effect of ion beam on electromagnetic ion cyclotron instability in hot anisotropic plasma-particle aspect analysis [PDF]
Annales Geophysicae, 2011 Using the general loss-cone distribution function electromagnetic ion cyclotron (EMIC) instability affected by up going ion beam has been studied by investigating the trajectories of charged particles.
S. Patel +3 more
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Confirmation of EMIC wave‐driven relativistic electron precipitation [PDF]
Journal of Geophysical Research: Space Physics, 2016 AbstractElectromagnetic ion cyclotron (EMIC) waves are believed to be an important source of pitch angle scattering driven relativistic electron loss from the radiation belts. To date, investigations of this precipitation have been largely theoretical in nature, limited to calculations of precipitation characteristics based on wave observations and ...
Hendry, Aaron T. +7 more
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Earth, Planets and Space, 2020 We present a statistical study of electromagnetic ion cyclotron (EMIC) waves observed at Antarctic station (geographic $$70.7{^\circ }\,\hbox {S}$$ 70.7 ∘ S , $$11.8{^\circ }\,\hbox {E}$$ 11.8 ∘ E , $$L=5$$ L = 5 ) on quiet and disturbed days during 2011–
Aditi Upadhyay +4 more
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Geophysical Research Letters, 2023 Using the high‐quality measurements of plasma by the Magnetospheric Multiscale (MMS) spacecraft, we investigate the wave‐particle interaction between cold protons and Electromagnetic ion cyclotron (EMIC) waves of different polarizations in the inner ...
Xinmin Li +5 more
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