Results 41 to 50 of about 13,240 (212)

EMIC Waves in the Outer Magnetosphere: Observations of an Off-Equator Source Region. [PDF]

, 2019
Electromagnetic ion cyclotron (EMIC) waves at large L shells were observed away from the magnetic equator by the Magnetospheric MultiScale (MMS) mission nearly continuously for over four hours on 28 October 2015.
B. J. Anderson, C. T. Russell, J. L. Burch, King J. H., M. J. Engebretson, P. A. Lindqvist, R. B. Torbert, R. C. Allen, R. E. Ergun, R. J. Strangeway, S. A. Fuselier, S. K. Vines, Zhang J.‐C.   +12 more
core   +1 more source

Magnetic tilt effect on externally driven electromagnetic ion cyclotron (EMIC) waves

Geophysical Research Letters, 2022
AbstractWe examine coupling of fluctuations in the solar wind with electromagnetic ion cyclotron (EMIC) waves in the magnetosphere using an advanced full‐wave simulation code, Petra‐M. Dipole tilt dramatically affects the coupling process. While very little wave power can reach the inner magnetosphere without tilt effects, a tilted dipole field ...
Eun‐Hwa Kim, Jay R. Johnson
openaire   +2 more sources

Nonlinear Scattering of 90° Pitch Angle Electrons in the Outer Radiation Belt by Large‐Amplitude EMIC Waves

Geophysical Research Letters, 2020
Electromagnetic ion cyclotron (EMIC) waves can cause relativistic electron scattering and atmospheric precipitation, primarily via cyclotron resonant interactions in the Earth's radiation belts.
Dae‐Young Lee, Kyung‐Chan Kim, Cheong‐Rim Choi   +2 more
doaj   +1 more source

Study of EMIC wave excitation using direct ion measurements [PDF]

, 2015
With data from Van Allen Probes, we investigate electromagnetic ion cyclotron (EMIC) wave excitation using simultaneously observed ion distributions. Strong He band waves occurred while the spacecraft was moving through an enhanced density region.
Bonnell, J., Breneman, Aaron W., Denton, Richard E., Funsten, H. O., Jahn, Joerg-Micha, Kletzing, C A., Kurth, W. S., Larsen, B. A., Liu, Kaijun, Min, Kyungguk, Reeves, Geoffrey, Spence, Harlan E., Wygant, J. R.   +12 more
core   +2 more sources

Variation in crossover frequency of EMIC waves in plasmasphere estimated from ion cyclotron whistler waves observed by Van Allen Probe A

Geophysical Research Letters, 2016
We report variations in the propagation of the H+ band ion cyclotron whistlers observed by Van Allen Probe A. Ion cyclotron whistlers are one of the EMIC (electromagnetic ion cyclotron) waves generated by mode conversion from lightning whistlers ...
Shoya Matsuda, Yoshiya Kasahara, Craig A. Kletzing   +2 more
doaj   +1 more source

Electromagnetic ion-cyclotron instability in the presence of a parallel electric field with general loss-cone distribution function - particle aspect analysis [PDF]

Annales Geophysicae, 2006
The effect of parallel electric field on the growth rate, parallel and perpendicular resonant energy and marginal stability of the electromagnetic ion-cyclotron (EMIC) wave with general loss-cone distribution function in a low β homogeneous ...
G. Ahirwar, P. Varma, M. S. Tiwari
doaj   +1 more source

ULF wave measurements onboard the Interball auroral probe [PDF]

Annales Geophysicae, 1998
The IESP experiment implemented onboard the Interball auroral probe measures the six components (3B, 3E) of the waves in the ULF range: 0.1–10 Hz and from time to time 0–30 Hz.
S. Perraut, A. Roux, F. Darrouzet, C. de Villedary, M. Mogilevsky, F. Lefeuvre   +5 more
doaj   +1 more source

Energy Exchange Between Electromagnetic Ion Cyclotron (EMIC) Waves and Thermal Plasma: From Theory to Observations

Frontiers in Astronomy and Space Sciences, 2021
The cold plasmaspheric plasma, the ring current and the radiation belts constitute three important populations of the inner magnetosphere. The overlap region between these populations gives rise to wave-particle interactions between different plasma ...
M. E. Usanova
doaj   +1 more source

On the Nature of Pulsar Radio Emission [PDF]

, 1998
A theory of pulsar radio emission generation, in which the observed waves are produced directly by maser-type plasma instabilities operating at the anomalous cyclotron-Cherenkov resonance $\omega- k_{\parallel} v_{\parallel} + \omega_B/ \gamma_{res}=0 ...
Arons, Arons, Arons, Arons, Blandford, Chugunov, Daugherty, Didenko, Galuzo, George Machabeli, Ginzburg, Gwinn, Hankins, Harrison, Kazbegi, Kazbegi, Kazbegi, Kazbegi, Kramer, Kramer, Lesch, Lominadze, Lominadze, Lorimer, Luo, Lyne, Lyutikov, Lyutikov, Lyutikov, Lyutikov, Lyutikov, Lyutikov, Machabeli, Manchester, Manchester, Markwardt, Maxim Lyutikov, Melrose, Melrose, Moffett, Nusinovich, Rankin, Roger D. Blandford, Schwinger, Tademaru, Usov, Volokitin, Yadigaroglu, Zheleznyakov   +48 more
core   +4 more sources

On a nonlinear state of the electromagnetic ion/ion cyclotron instability [PDF]

Nonlinear Processes in Geophysics, 2000
We have investigated the nonlinear properties of the electromagnetic ion/ion cyclotron instability (EMIIC) by means of hybrid simulations (macroparticle ions, massless electron fluid).
M. Scholer
doaj