Results 21 to 30 of about 11,735 (263)
Alfvén Wave Connection between the Chromosphere and the Corona of the Sun: An Analytical Study
The Astrophysical Journal, 2023 Alfvén waves are closely relevant to the three outstanding problems in the solar corona: coronal heating, solar wind acceleration, and the fractionization of low first ionization potential (FIP) elements.
Jongchul Chae, Kyoung-Sun Lee
doaj +1 more source
Alfvén waves: To the 80th anniversary of discovery
Solar-Terrestrial Physics, 2022 The article is dedicated to the anniversary of the discovery of Alfvén waves. The concept of Alfvén waves has played an outstanding role in the formation and development of cosmic electrodynamics.
Guglielmi A. V. +2 more
doaj +1 more source
The Astrophysical Journal, 2023 Using multipoint observations over 10 yr near 1 au, we investigate the spectra (5 minutes to 2 hr) of interplanetary Alfvén waves and the responses in the geomagnetic activities.
Yimin Han +8 more
doaj +1 more source
A Case for Alfven Wave Heating [PDF]
Symposium - International Astronomical Union, 1990 The resistive dissipation of Alfvén waves in magnetically structured media is examined within the framework of an analytically solvable model in plane geometry. A new class of rapidly oscillations solutions is found, for which the role of resistivity extends to the whole system.
F. Califano, C. Chiuderi, G. Einaudi
openaire +1 more source
Non-propagating electric and density structures formed through non-linear interaction of Alfvén waves [PDF]
Annales Geophysicae, 2012 In the auroral zone of the Earth, the electron acceleration by Alfvén waves is sometimes seen as a precursor of the non-propagating acceleration structures.
F. Mottez
doaj +1 more source
Geophysical Research Letters, 2023 Results from a 1D kinetic simulation, for the first time, reveal the important role of modified electron acoustic wave (MEAW) in auroral electron acceleration.
Run Shi +4 more
doaj +1 more source
OALib, 2020 It has been shown that a variety of names are assigned to the original MHD Alfven wave derived originally by Hannes Alfven in the 40s (Nature 150, 405-406 (1942)), and those names are used due to the different magnetic geometries where the target plasma could be confined, that is, in laboratory, in fusion, in space, and in astrophysics, where one could
A. S. de Assis +2 more
openaire +1 more source
Nonlinear Interaction of Low-frequency Alfvén Waves and Ions
The Astrophysical Journal, 2023 The interaction between Alfvén waves and particles is a critical phenomenon in space and laboratory plasmas, and it has been observed that low-frequency Alfvén waves can accelerate and heat ions through subharmonic resonant interactions.
Xianshu Wu +4 more
doaj +1 more source
Alfvén‐Fast Wave Coupling in a 2D Nonuniform Medium
Earth and Space Science, 2023 A 2D Cartesian simulation is presented and used to solve the ideal, low‐beta, linear magnetohydrodynamics equations. A simulation is used to investigate the propagation of Alfvén waves through inhomogeneities in Alfvén speed and density.
R. Davies, A. N. Wright
doaj +1 more source
Phase Mixing of Propagating Alfvén Waves in a Single-fluid Partially Ionized Solar Plasma
The Astrophysical Journal, 2023 The phase mixing of Alfvén waves is one of the most promising mechanisms for the heating of the solar atmosphere. The damping of waves in this case requires small transversal scales, relative to the magnetic field direction; this requirement is achieved ...
M. McMurdo +4 more
doaj +1 more source