Results 11 to 20 of about 994 (229)

A “Trap‐Release‐Amplify” Model of Chorus Waves [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2021
AbstractWhistler mode chorus waves are quasi‐coherent electromagnetic emissions with frequency chirping. Various models have been proposed to understand the chirping mechanism, which is a long‐standing problem in space plasmas. Based on analysis of effective wave growth rate and electron phase space dynamics in a self‐consistent particle simulation, we
Tao, Xin, Zonca, Fulvio, Chen, Liu
openaire   +2 more sources

Modeling the wave normal distribution of chorus waves [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
The propagation and attenuation characteristics of lower band and upper band chorus waves are investigated by ray tracing, and the evaluation of Landau damping based on an empirical suprathermal electron model derived from Time History of Events and Macroscale Interactions during Substorms (THEMIS) data.
Lunjin Chen   +3 more
openaire   +2 more sources

A review of frequency chirping mechanism of chorus waves in the Earth's magnetosphere

open access: yes地球与行星物理论评, 2022
Whistler mode chorus waves are common and intense electromagnetic waves in the Earth's magnetosphere. They play a crucial role in magnetospheric electron dynamics by accelerating and scattering electrons over a wide energy range.
Shangchun Teng, Xin Tao
doaj   +1 more source

Frequencies of wave packets of whistler-mode chorus inside its source region: a case study [PDF]

open access: yesAnnales Geophysicae, 2008
Whistler-mode chorus is a structured wave emission observed in the Earth's magnetosphere in a frequency range from a few hundreds of Hz to several kHz.
O. Santolik   +11 more
doaj   +1 more source

Multi‐Parameter Chorus and Plasmaspheric Hiss Wave Models [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2020
AbstractThe resonant interaction of energetic particles with plasma waves, such as chorus and plasmaspheric hiss waves, plays a direct and crucial role in the acceleration and loss of radiation belt electrons that ultimately affect the dynamics of the radiation belts.
Homayon Aryan   +5 more
openaire   +4 more sources

Observations and modeling of forward and reflected chorus waves captured by THEMIS [PDF]

open access: yesAnnales Geophysicae, 2011
Discrete ELF/VLF chorus emissions are the most intense electromagnetic plasma waves observed in the radiation belts of the Earth's magnetosphere. Chorus emissions, whistler-mode wave packets propagating roughly along magnetic field lines from a well ...
O. Agapitov   +7 more
doaj   +1 more source

Off-equatorial effects of the nonlinear interaction of VLF chorus waves with radiation belt electrons

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Nonlinear processes are involved in both the growth of VLF chorus waves and the energization of radiation belt electrons trapped in the wave potential. Nonlinear theory has led to analytic formulae describing both these processes.
John C. Foster, Philip J. Erickson
doaj   +1 more source

Acceleration mechanism of radiation belt electrons through interaction with multi-subpacket chorus waves

open access: yesEarth, Planets and Space, 2020
We conduct test particle simulations to examine the acceleration mechanism of relativistic electrons through interaction with multi-subpacket chorus waves.
Ryoko Hiraga, Yoshiharu Omura
doaj   +1 more source

Verification of the backward wave oscillator model of VLF chorus generation using data from MAGION 5 satellite [PDF]

open access: yesAnnales Geophysicae, 2003
We present a detailed study of chorus emissions in the magnetosphere detected on board Magion 5, when the satellite was not far from the magnetic equator.
E. E. Titova   +5 more
doaj   +1 more source

Combined effects of concurrent Pc5 and chorus waves on relativistic electron dynamics [PDF]

open access: yesAnnales Geophysicae, 2015
We present electron phase space density (PSD) calculations as well as concurrent Pc5 and chorus wave activity observations during two intense geomagnetic storms caused by interplanetary coronal mass ejections (ICMEs) resulting in contradicting net ...
C. Katsavrias   +7 more
doaj   +1 more source

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