Results 31 to 40 of about 11,735 (263)
Penetration to the Earth's surface of standing Alfvén waves excited by external currents in the ionosphere [PDF]
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 m»1 are considered.
A. S. Leonovich, V. A. Mazur
doaj +1 more source
Behavior of Torsional Alfven Waves and Field Line Resonance on Rotating Magnetars [PDF]
Torsional Alfven waves are likely excited with bursts in rotating magnetars. These waves are probably propagated through corotating atmospheres toward a vacuum exterior.
Kojima, Yasufumi, Okita, Taishi
core +2 more sources
Alfven wave studies on PRETEXT [PDF]
The properties of low frequency Alfven waves in hot, magnetically confined plasmas are quite unlike those in homogeneous media. Extensive theoretical studies have uncovered the Alfven continuum along with global Alfven eigenmodes (GAE). It has been suggested that such modes may be good candidates for rf heating below the ion cyclotron frequency.
Valanju, P. M. +8 more
openaire +2 more sources
The role of torsional Alfven waves in coronal heating [PDF]
In the context of coronal heating, among the zoo of MHD waves that exist in the solar atmosphere, Alfven waves receive special attention. Indeed, these waves constitute an attractive heating agent due to their ability to carry over the many different ...
Antiochos +40 more
core +1 more source
Self-similar evolution of Alfven wave turbulence [PDF]
Summary: We study self-similar solutions of the kinetic equation for MHD wave turbulence derived in [\textit{S. Galtier} et al., ``A weak turbulence theory for incompressible magnetohydrodynamics'', J. Plasma Phys. 63, No. 5, 447--488 (2000; \url{doi:10.1017/s0022377899008284})].
N K Bell +3 more
openaire +1 more source
Coupling Between Alfvén Wave and Kelvin–Helmholtz Waves in the Low Latitude Boundary Layer
The Kelvin–Helmholtz (KH) instability of magnetohydrodynamic surface waves at the low latitude boundary layer is examined using both an eigenfrequency analysis and a time-dependent wave simulation.
E.-H. Kim, J. R. Johnson, K. Nykyri
doaj +1 more source
Evolution of Alfven wave-driven solar winds to red giants [PDF]
In this talk we introduce our recent results of global 1D MHD simulations for the acceleration of solar and stellar winds. We impose transverse photospheric motions corresponding to the granulations, which generate outgoing Alfven waves. The Alfven waves
Axford +9 more
core +1 more source
Ion acceleration by parallel propagating nonlinear Alfvén wave packets in a radially expanding plasma [PDF]
The numerical simulation of the nonlinear evolution of the parallel propagating Alfvén waves in a radially expanding plasma is performed by using a kinetic-fluid model (the Vlasov–MHD model). In our study, both the nonlinear evolution of the Alfvén waves
Y. Nariyuki +3 more
doaj +1 more source
Ion-neutral collisions may lead to the damping of Alfven waves in chromospheric and prominence plasmas. Neutral helium atoms enhance the damping in certain temperature interval, where the ratio of neutral helium and neutral hydrogen atoms is increased ...
Khodachenko, M. L. +2 more
core +1 more source
Experimental Generation of Plasma Alfven Waves
Alfven has postulated the existence of hydromagnetic waves to explain certain sunspot phenomena. An experiment is described in which an effort was made to generate and detect such waves. (A.C.)
Allen, T.K. +3 more
openaire +2 more sources

