Results 101 to 110 of about 10,009 (174)

On the role of Alfvén waves as precursors of quasi-static acceleration processes in the Earth auroral zone [PDF]

, 2012
Proceeding of the SF2A conference in Nice, 2012.In the Earth auroral zone, the electron acceleration by Alfvén waves is sometimes a precursor of the non-propagating acceleration structures.
Mottez, Fabrice
core   +2 more sources

Resonant Absorption as Mode Conversion? II. Temporal Ray Bundle

, 2010
A fast-wave pulse in a simple, cold, inhomogeneous MHD model plasma is constructed by Fourier superposition over frequency of harmonic waves that are singular at their respective Alfven resonances.
Chris S. Hanson, D.H. Bailey, P.S. Cally, Paul S. Cally   +3 more
core   +1 more source

How Alfvén waves energize the solar wind: heat vs work. [PDF]

J Plasma Phys, 2021
Perez JC, Chandran BDG, Klein KG, Martinović MM, Martinović MM.   +4 more
europepmc   +1 more source

MHD WAVES IN THE COLLISIONAL PLASMA OF THE SOLAR CORONA AND TERRESTRIAL IONOSPHERE

Solar-Terrestrial Physics, 2020
We have studied MHD waves (Alfvén and fast compressional modes) in a homogeneous collisional three-component low-β plasma. The three-component plasma consists of electrons, ions, and neutrals with arbitrary ratio between collision frequencies and wave ...
A.K. Nekrasov, V.A. Pilipenko
doaj   +1 more source

One-dimensional Linear Analysis and Numerical Simulations of Alfvén Waves in a Force-free Magnetosphere around a Kerr Black Hole

The Astrophysical Journal
We perform 1D linear analysis and numerical simulations of the propagation of Alfvén waves in a force-free magnetosphere along magnetic field lines around a spinning black hole.
Shinji Koide, Sousuke Noda, Masaaki Takahashi   +2 more
doaj   +1 more source

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

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

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