Journal ArticleDOI
Electromagnetic ion‐cyclotron instabilities in multicomponent magnetospheric plasmas
John M. Cornwall,Michael Schulz +1 more
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TLDR
Growth rates for ion electromagnetic cyclotron (EMC) modes are calculated for several unconventional cases of magnetospheric importance, including total absence of cold plasma and presence of artificially injected heavy ion plasma as discussed by the authors.Abstract:
Growth rates for ion electromagnetic cyclotron (EMC) modes are calculated for several unconventional cases of magnetospheric importance, including total absence of cold plasma and presence of artificially injected heavy-ion plasma. Artificial injection of a very heavy ion such as barium or cesium is likely to suppress, rather than enhance, instability in the important ion-EMC mode, while injection of a light ion like lithium should be very effective in promoting instability in the ring current outside the plasmapause.read more
Citations
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The modified plasma dispersion function
Danny Summers,Richard M. Thorne +1 more
TL;DR: The modified plasma dispersion function (MPDF) as mentioned in this paper is based on the generalized Lorentzian (kappa) particle distribution function, and a comprehensive set of graphs of the real and imaginary parts of the MPDF is presented.
Journal ArticleDOI
Observations and theory of the formation of stable auroral red arcs
M. H. Rees,R. G. Roble +1 more
TL;DR: A population of protons with energy of some tens of keV, called the ring current, is found near the equatorial region of the magnetosphere at several earth radii.
Journal ArticleDOI
Numerical simulation of nonoscillatory mirror waves at the Earth's magnetosheath
TL;DR: In this article, the generation of nonoscillatory mirror waves using a one-dimensional periodic hybrid electromagnetic simulation is studied using a homogeneous high beta (beta = 2.5) plasma with the ambient magnetic field at various angles to the simulation axis.
Journal ArticleDOI
Proton temperature anisotropy instabilities in the solar wind
TL;DR: In this article, the linear dispersion properties of proton temperature anisotropy instabilities in a homogeneous infinite Vlasov plasma were studied by using a configuration appropriate to the solar wind at 1 AU.
Journal ArticleDOI
Global simulation of EMIC wave excitation during the 21 April 2001 storm from coupled RCM‐RAM‐HOTRAY modeling
Lunjin Chen,Richard M. Thorne,Vania K. Jordanova,Chih-Ping Wang,Matina Gkioulidou,Larry R. Lyons,Richard B. Horne +6 more
TL;DR: In this paper, the global distribution and spectral properties of electromagnetic ion cyclotron (EMIC) waves in the He+ band were simulated for the 21 April 2001 storm using a combination of three different codes: the Rice Convection Model, the Ring current-Atmospheric interactions Model, and the HOTRAY ray tracing code (incorporated with growth rate solver).
References
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Journal ArticleDOI
Limit on stably trapped particle fluxes
Charles F. Kennel,H. E. Petschek +1 more
TL;DR: The limit on stably trapped particle fluxes determined theoretically and compared with data from Explorer satellites was first established in this paper, and the limit was later confirmed by the International Journal of Astronautics.
Journal ArticleDOI
Turbulent loss of ring-current protons.
TL;DR: Ring current protons turbulent diffusion in magnetospheric plasmapause, considering ion cyclotron wave lifetime and geomagnetic storms was studied in this article, where the authors considered the effect of magnetic storms.
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Cyclotron instabilities and electromagnetic emission in the ultra low frequency and very low frequency ranges
TL;DR: In this article, a model for the generation of pearl-type micropulsations in the 0.1-5 cps range is presented, where a beam of trapped protons at L ≥ 4, supersonic with respect to the local Alfven speed, emits hydromagnetic waves at a frequency corresponding to the occurrence of a cyclotron instability.
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Unified theory of SAR arc formation at the plasmapause
TL;DR: Stable auroral red arcs generation at plasmapause from ion cyclotron wave turbulent dissipation of ring current proton energy as discussed by the authors, with stable red arcs generated at plasapause.
Journal ArticleDOI
The morphology of the bulge region of the plasmasphere
TL;DR: Plasmasphere bulge region morphology from hydrogen ion concentration measurement by mass spectrometer on OGO 5 satellite was obtained from the OGO-5 satellite as mentioned in this paper, which was used for the measurement.