Results 111 to 120 of about 670,718 (179)

Solitary kinetic Alfven waves: A study of the Poynting flux

, 1996
Using a particular mode of the FREJA wave experiment (three magnetic and one electric simultaneous measurements), we have investigated the electromagnetic structure of the solitary kinetic Alfven waves observed in the topside ionosphere, It is shown ...
Volwerk, M,, Louarn, P,, Roux, A,, Holback, B,, Chust, T,, deFeraudy, H,   +5 more
core  

Changes in the Plasma Sheet Conditions at Europa's Orbit Retrieved From Lead Angle of the Satellite Auroral Footprints

Geophysical Research Letters
The electromagnetic interaction between Europa and the plasma sheet in the Jovian magnetosphere generates Alfvén waves, ultimately generating auroral footprints in Jupiter's atmosphere.
Shinnosuke Satoh, Fuminori Tsuchiya, Shotaro Sakai, Yasumasa Kasaba, Jonathan D. Nichols, Tomoki Kimura, Rikuto Yasuda, Vincent Hue   +7 more
doaj   +1 more source

Auroral Electron acceleration by Alfven waves and electrostatic fields

, 2000
We present a two-dimensional numerical model for the formation of discrete auroral arcs. This model describes the evolution of shear Alfven waves generated by a growing force near the equatorial plane, and the transition to electrostatic fields when the ...
Maria Hamrin, Kjell Rönnmark, Rönnmark, Kjell, Hamrin, Maria, Hamrin, Maria,, Rönnmark, Kjell,   +5 more
core   +1 more source

Continuum Enhancement and Line Asymmetries of Solar Flares in Different Heating Models: Alfvén Waves, Nonthermal Electron Beams, and Their Joint Effect

The Astrophysical Journal
How the plasma in the atmosphere is heated during a solar flare remains inconclusive. Nonthermal electron beams are usually considered as an essential heating source, yet Alfvén waves have also been proposed as a promising heating mechanism.
Jun Tian, Ying Li, Jie Hong, M. D. Ding
doaj   +1 more source

How Alfvén waves induce compressive flows in the neighborhood of a 2.5D magnetic null-point. [PDF]

Sci Rep, 2020
Sabri S, Farahani SV, Ebadi H, Poedts S.
europepmc   +1 more source

Driven Phase-mixed Alfvén Waves in a Partially Ionized Solar Plasma

The Astrophysical Journal
Phase mixing has long been understood to be a viable mechanism for expediting the dissipation of Alfvén wave energy resulting in the subsequent heating of the solar atmosphere.
M. McMurdo, I. Ballai, G. Verth, V. Fedun   +3 more
doaj   +1 more source

A self-consistent model for the generation of coronal condensation: Effects of turbulent wave dissipation

Astronomy & Astrophysics
Context. Prominences and coronal rain are two manifestations of coronal condensation, whose formation mechanisms remain only partially understood.
McMurdo M., Jerčić V., Van Doorsselaere T., Froment C.   +3 more
doaj   +1 more source

Magnetic Helicity of Alfven Simple Waves

, 2010
The magnetic helicity of fully nonlinear, multi-dimensional Alfven simple waves are investigated, by using relative helicity formulae and also by using an approach involving poloidal and toroidal decomposition of the magnetic field and magnetic vector ...
Webb, Gary M., Zank, G. P., Dasgupta, B., Roberts, D., Hu, Q.   +4 more
core  

Penetration to the Earth's surface of standing Alfvén waves excited by external currents in the ionosphere

Annales Geophysicae
The problem of boundary conditions for monochromatic Alfvén waves, excited in the magnetosphere by external currents in the ionospheric E-layer, is solved analytically. Waves with large azimuthal wave numbers <i>m</i>»1 are considered. In our
A. S. Leonovich, V. A. Mazur
doaj  

Shear Alfven and ion sound waves in high-beta tokamak plasmas

, 2016
The structure of the continuous spectra of shear Alfven and ion sound waves in a beam-driven high-beta JT-60U plasma are analyzed using the linear gyrokinetic code LIGKA. In the presence of fast ions, new continuous spectra are found, which seem to arise
ビアワーゲ アンドレアス, 721979, 721980, ビアワーゲ, アンドレアス   +3 more
core