Results 71 to 80 of about 716 (136)

Excitation of Alfven waves and pulsar radio emission [PDF]

Monthly Notices of the Royal Astronomical Society, 2000
12 pages, 2 postscipt figures.
openaire   +2 more sources

On the Correlation between Alfvén Waves and Auroral Radio Emissions in the Jovian System

The Astrophysical Journal
Jupiter’s powerful aurorae reflect intense energy dissipation in the magnetosphere–ionosphere system. Recent studies reveal that solar wind compression systematically enhances auroral emission, while the mechanism is not yet fully understood.
Yuening Chen, Zhonghua Yao, Shengyi Ye
doaj   +1 more source

Alfvén Wave Propagation in the Io Plasma Torus

Geophysical Research Letters, 2019
Io, the most volcanically active body in the solar system, fuels a plasma torus around Jupiter with dissociation products of SO2 at a rate of ~1,000 kg/s.
P. C. Hinton, F. Bagenal, B. Bonfond
doaj   +1 more source

Investigating the Role of Inward Alfvén Waves and Structures in the Slow Solar Wind

The Astrophysical Journal
The solar wind dynamics are thought to be governed by counter-propagating Alfvén waves. Alfvén waves generate a turbulent cascade through nonlinear couplings between shearing wave packets. However, imbalances, structures, and intermittency complicate the
Michael Terres, Gang Li
doaj   +1 more source

Distribution of equatorial Alfvén velocity in the magnetosphere: a statistical analysis of THEMIS observations

Earth, Planets and Space, 2018
It has been known that the Alfvén velocity plays a significant role in generation and propagation of magnetohydrodynamic (MHD) waves. Until now, however, the global distribution of the Alfvén velocity in the magnetosphere has not been reported.
Khan-Hyuk Kim, Gi-Jeong Kim, Hyuck-Jin Kwon   +2 more
doaj   +1 more source

Simulation of a Collision between Shock Waves and a Magnetic Flux Tube: Excitation of Surface Alfven Waves and Body Alfven Waves

The Astrophysical Journal, 2000
To explain the observed dynamics of the small-scale magnetic flux tubes in the quiet photospheric network, Furusawa & Sakai presented simulation results on the collision of two flux tubes. They found that shock waves appear during the collision of two magnetic flux tubes, when two magnetic flux tubes with weak electric current collide with each other ...
J. I. Sakai, T. Kawata, K. Yoshida, K. Furusawa, N. F. Cramer   +4 more
openaire   +1 more source

Solitary Alfvén Waves

The Astrophysical Journal Letters
We present the solitary Alfvén wave as an ideal nonlinear Alfvénic solution in the solitary far-field limit and construct a 3D numerical model—an Alfvénon.
Zesen Huang, Marco Velli, Chen Shi, Yuliang Ding   +3 more
doaj   +1 more source

Modeling the Effects of a Light Bridge on Properties of Magnetohydrodynamic Waves in Solar Pores

The Astrophysical Journal
Solar pores are ideal magnetic structures for wave propagation and transport of energy radially outwards across the upper layers of the solar atmosphere.
Luiz A. C. A. Schiavo, Mykola Gordovskyy, Philippa K. Browning, Suzana de Souza e Almeida Silva, Gary Verth, Istvan Ballai, Sergiy Shelyag, Sergey N. Ruzheinikov, James A. McLaughlin, Viktor Fedun   +9 more
doaj   +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