Results 31 to 40 of about 643,536 (161)
Realistic Dispersion of Plasmaspheric Hiss in the Inner Magnetosphere and Its Effect on Wave-induced Electron Scattering Rates [PDF]
The Astrophysical Journal, 2021 Abstract The cold plasma approximation is a common treatment to study wave–particle interactions between plasmaspheric hiss and magnetospheric electrons, which, however, can become a challenge during periods of disturbed geomagnetic activity.
Xin Ma +4 more
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Simulation study on parametric dependence of whistler-mode hiss generation in the plasmasphere
Earth, Planets and Space, 2021 We conduct electromagnetic particle simulations to examine the applicability of nonlinear wave growth theory to the generation process of plasmaspheric hiss. We firstly vary the gradient of the background magnetic field from a realistic model to a rather
Yin Liu +2 more
doaj +1 more source
Observational evidence of the nonlinear wave growth theory of plasmaspheric hiss
Geophysical Research Letters, 2016 AbstractWe test the recently developed nonlinear wave growth theory of plasmaspheric hiss against discrete rising tone elements of hiss emissions observed by the Van Allen Probes. From the phase variation of the waveforms processed by bandpass filters, we calculate the instantaneous frequencies and wave amplitudes.
Satoko Nakamura +3 more
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Space Weather, 2023 It is believed that galactic cosmic rays and solar energetic particles are the two major sources of ionizing radiation. However, the radiation source may also be due to relativistic electrons that are associated with precipitation from the Van Allen ...
Homayon Aryan +4 more
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Prediction of plasmaspheric hiss spectral classes [PDF]
, 2022 We present a random forests machine learning model for prediction of plasmaspheric hiss spectral classes from the Van Allen Probes dataset. The random forests model provides accurate prediction of plasmaspheric hiss spectral classes obtained by the self ...
Drozdov, Alexander Y +3 more
core +1 more source
Radial diffusion simulations of the 20 September 2007 radiation belt dropout [PDF]
Annales Geophysicae, 2014 This is a study of a dropout of radiation belt electrons, associated with an isolated solar wind density pulse on 20 September 2007, as seen by the solid-state telescopes (SST) detectors on THEMIS (Time History of Events and Macroscale Interactions ...
J. Albert
doaj +1 more source
Geophysical Research Letters, 2020 Using Van Allen Probes pitch angle‐resolved electron flux data, we report intriguing events of electron butterfly pitch angle distributions (PADs) at L > ~5.5 on the nightside with distinct durations, i.e., about 9 hr for the 28–29 April 2013 event and ...
Binbin Ni +6 more
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Global model of plasmaspheric hiss from multiple satellite observations [PDF]
, 2018 We present a global model of plasmaspheric hiss, using data from eight satellites, extending the coverage and improving the statistics of existing models. We use geomagnetic activity dependent templates to separate plasmaspheric hiss from chorus.
Bortnick, Jacob +22 more
core +1 more source
The distribution of plasmaspheric hiss wave power with respect to plasmapause location
Geophysical Research Letters, 2016 AbstractIn this work, Van Allen Probes data are used to derive terrestrial plasmaspheric hiss wave power distributions organized by (1) distance away from the plasmapause and (2) plasmapause distance from Earth. This approach is in contrast to the traditional organization of hiss wave power by L parameter and geomagnetic activity.
David M. Malaspina +7 more
openaire +2 more sources
Journal of Geophysical Research: Space Physics, 2022 Plasmaspheric hiss waves are a dominant source of scattering for keV – MeV radiation belt electrons within the plasmasphere. Previous simulation and modeling work concerning hiss waves has often incorporated them via particle-based parameterizations (e.g., L-shell).
A. A. Saikin +2 more
openaire +1 more source