Results 41 to 50 of about 670,718 (179)

Coronal heating and wind acceleration by nonlinear Alfvén waves – global simulations with gravity, radiation, and conduction [PDF]

open access: yesNonlinear Processes in Geophysics, 2008
We review our recent results of global one-dimensional (1-D) MHD simulations for the acceleration of solar and stellar winds. We impose transverse photospheric motions corresponding to the granulations, which generate outgoing Alfvén waves.
T. K. Suzuki
doaj  

Geoeffectiveness of Interplanetary Alfvén Waves. I. Magnetopause Magnetic Reconnection and Directly Driven Substorms

open access: yesThe Astrophysical Journal, 2023
In particular during the descending phase of the solar cycle, Alfvén waves in the high-speed solar wind streams are a major form of interplanetary disturbances.
Lei Dai   +8 more
doaj   +1 more source

Reconnection Onset in Overstretched Thin Current Sheets: 3‐D Kinetic Picture

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract Evolution of the magnetotail equilibrium, whose current density iso‐contours are stretched beyond the magnetic field lines due to small ion anisotropy and agyrotropic effects on the scales of the thermal ion gyroradius (the so‐called overstretched thin current sheet) is considered using 3‐D explicit particle‐in‐cell simulations.
M. I. Sitnov, H. Arnold
wiley   +1 more source

Vlasov simulation of kinetic shear Alfven waves [PDF]

open access: yes, 2004
The treatment of kinetic shear Alfven waves in homogeneous magnetized plasmas by means of Vlasov simulation is examined. To this end, the driftkinetic version of the Vlasov-Maxwell equations is solved via various numerical schemes, all employing a grid ...
Dannert, Tilman   +3 more
core   +2 more sources

Exploring Jupiter's Mid‐Latitude Dusk Magnetopause: The Impact of Magnetic Reconnection

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The Juno mission has elucidated magnetosphere processes, structure, and dynamics via multi‐instrument plasma and magnetic field observations. In this study, these instruments are used to identify magnetic reconnection during the Juno extended mission from a survey of 490 magnetopause crossings at the mid‐latitude southern dusk magnetopause ...
J. Montgomery   +8 more
wiley   +1 more source

Natural Generation of Alfvén Waves from Three-dimensional Bursty Interchange Magnetic Reconnection in the Solar Corona

open access: yesThe Astrophysical Journal Letters
Alfvén waves play a significant role in solar coronal heating, solar wind acceleration, and Alfvénic turbulence formation. As a fundamental process, magnetic reconnection has long been credited as a crucial source of Alfvén waves.
Liping Yang   +12 more
doaj   +1 more source

LARGE AMPLITUDE ALFVÉN WAVES IN MAGNETOHYDRYNAMICS CONSIDERING INERTIAL TERMS IN THE OHM’S LAW

open access: yesAnales (Asociación Física Argentina)
Incompressible Alfvén waves have been detected in a variety of space and astrophysical plasmas. Some of these plasmas can be studied within the framework of magnetohydrodynamics with extended conditions.
P. A. Sallago
doaj   +1 more source

Alfvén waves in the magnetosphere generated by shock wave/plasmapause interaction

open access: yesSolar-Terrestrial Physics, 2019
We study Alfvén waves generated in the magnetosphere during the passage of an interplanetary shock wave. After shock wave passage, the oscillations with typical Alfvén wave dispersion have been detected in spacecraft observations inside the magnetosphere.
Leonovich A.S.   +3 more
doaj   +1 more source

Convective Amplification of Ionospheric Feedback by a Finite‐Duration Inertial Alfvén‐Wave Source

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We investigate the ionospheric feedback instability (IFI) driven by a finite‐duration localized source of inertial Alfvén waves. Wave‐excited conductance perturbations undergo Pedersen mobility drift in the convection and wave electric fields and are amplified.
R. Rankin, W. Wang, Q.‐G. Zong
wiley   +1 more source

Discrete Alfvén Waves in Solar Prominences: Preliminary Studies

open access: yesBrazilian Journal of Geophysics, 1990
It is shown that the Discrete Alfvén wave can explain the natural oscillations of solar prominences by considering the existence of a current flow.
C. A. Azevedo   +3 more
doaj   +1 more source

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