electromagnetic ion-cyclotron waves
Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations
... field-aligned propagation, as was expected of the equatorial EMIC waves. Figure 5 shows a hodogram from the same wave packet as highlighted in Fig. 3. For easier viewing of the hodogram, only a segment of the ...
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Nonlinear compressional electromagnetic ion-cyclotron wavepackets in space plasmas
... EMIC waves are also im- portant in fusion plasmas (Greene and Gould, 1991) and in isotope separation studies, where their resonance with ion species is employed as an effective heating mechanism ...
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Ponderomotive impacts of ion cyclotron waves on the ions in the equatorial zone of the magnetosphere
... Ponderomotive force is the time-averaged nonlinear force acting on the media in the presence of high frequency elec- tromagnetic field. Nonlinearity is herein taken to mean that the ponderomotive force is quadratic in ...
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The Electromagnetic Ion-Cyclotron Instability in the Presence of a.C. Electric Field for Lorentzian Kappa
... EMIC waves observed by GEOS 1 and 2 near geostationary ...of waves above Ω + He that reflect at high latitudes and are geomagnetically ...such waves might be amplified each time they cross the magnetic ...
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High frequency Alfven waves in multi ion coronal plasma : observational implications
... the electromagnetic ion cyclotron wave spectrum and that the minor ions can be strongly energized by the ion-cyclotron ...if ion cyclotron waves are present in the ...
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The nonlinear coupling of electromagnetic ion cyclotron and lower hybrid waves in the ring current region: the magnetic storm 1–7 May 1998
... where δt = 21τ/ h ν i . It was found that for all cases when the LHWs are excited, there are always some wave vectors k for which the LHW activity is enriched during the EMIC wave period. The existence of such k can be ...
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Simulation Study of High-Frequency Magnetosonic Waves Excited by Energetic Ions in Association with Ion Cyclotron Emission
... magnetosonic waves caused by energetic ions with a ring-like velocity dis- tribution are studied with a one-dimensional electromagnetic particle code which simulates self-consistently the full ion ...
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Low frequency electromagnetic waves and instabilities within the Martian bi ion plasma
... low-frequency electromagnetic waves (LFEW) in the proton gyrofrequency range are ...these waves results from the relative motion between the solar wind protons and planetary heavy ions, which are ...
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Lower-hybrid (LH) oscillitons evolved from ion-acoustic (IA)/ ion-cyclotron (IC) solitary waves: effect of electron inertia
... nonlinear electromagnetic “whistler” structures, which can exist at parallel and supposedly also at oblique propagation with respect to the static, background magnetic field ...electron- ion system to ...
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Study of Electromagnetic Ion-Cyclotron Instability in a Magnetoplasma
... EMIC waves was sought to explain the AMPTE/CCE data of morning/evening sector in the magnetosphere around L = ...PC-1 waves found to appear in frequency range above the helium gyrofrquency during substroms, ...
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Spectral properties of electromagnetic turbulence in plasmas
... Alfv´en waves (KAWs), or damping of ion-cyclotron waves, or dispersive processes, or other im- plicit nonlinear interactions associated with kinetic effects in solar wind plasmas (Denskat et ...
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Excitation of EMIC waves detected by the Van Allen Probes on 28 April 2013
... 3. Linear theory indicates that Σ h S h is signi fi cantly raised, on average, to 0.10 ± 0.01, 0.15 ± 0.02, and 0.07 ± 0.02 during the three wave events, respectively. These are elevated thresholds for EMIC wave ...
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Verification of Polarization Reversal of Electromagnetic Waves with Electron Cyclotron Frequency Controlling Plasma-Structure Formation
... the position of ECR point of the 6 GHz microwave). The wavelengths of R-mode and L-mode excitations are shorter and longer compared with the wavelengths in vacuum, therefore, they correspond to the RHPW and LHPW, re- ...
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Study of Optical Properties of Tokamak Plasma
... To describe the propagation of electron cyclotron waves in plasma is generally used the cold plasma approximation [2]. In this approximation the plasma pressure is assumed very small compared to the ...
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Direct Observation of Electron Heating by Electron Landau Damping of Alfvén Ion Cyclotron Waves Using Thomson Scattering System in the Tandem Mirror GAMMA 10/PDX
... t < 110 ms are due to the direct heating of electrons by the RF electric field. The significant increase of electron tem- perature with the start of AIC mode condition for t = 115 - 130 ms is clearly observed. The ...
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Fast particle driven ion cyclotron emission (ICE) in tokamak plasmas and the case for an ICE diagnostic in ITER
... motion. Waves propagating obliquely with respect to the magnetic field B have been shown to be linearly unstable when the energetic ion concentration is very low, due to the Doppler shift term in the ...
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Range finding of Alfvén oscillations and direction finding of ion cyclotron waves by using the ground based ULF finder
... Abstract. A new approach to the problem of direction and distance ®nding of magnetospheric ULF oscilla- tions is described. It is based on additional information about the structure of geoelectromagnetic ®eld at the ...
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Effect of High Ion Temperature on the Polytropic Coefficient in the End Region of GAMMA 10/PDX
... lisionless plasma would reduce γ below its value in the widely used model. Figures 6 (a) and (b) show the en- ergy spectra obtained by the IEA in the RF2 and no-RF2 operations, respectively. The spectra were collected ...
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Municipal Wastewater Disinfection with Electromagnetic Waves using Escherichia coli Concentration as Measurement of Quantification
... Municipal Wastewater Disinfection with Electromagnetic Waves Municipal Wastewater Disinfection with Electromagnetic Waves using Escherichia coli Concentration as Measurement of.. using[r] ...
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Opposite Dust on Linear Dust-acoustic Waves
... where n j is the number density of the plasma species j (j equals i for ions, e for electrons), n n d ( d ) is the number density of positive (negative) dust. u u d ( d ) is the positive (negative) dust fluid ...
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