scholarly journals The nature of the frequency spectrum of shear Alfvén waves in a solar coronal arcade

2020 ◽  
Vol 27 (7) ◽  
pp. 072902
Author(s):  
Rekha Jain
Keyword(s):  
Frequency Spectrum ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Shear Alfven Waves ◽  
Solar Coronal

scholarly journals Solar coronal electron heating by short-wavelength dispersive shear Alfvén waves

2015 ◽  
Vol 90 (10) ◽  
pp. 108004
Author(s):  
R Bingham ◽  
P K Shukla ◽  
B Eliasson ◽  
A Cairns
Keyword(s):  
Short Wavelength ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Electron Heating ◽  
Shear Alfven Waves ◽  
Coronal Electron ◽  
Solar Coronal

Anomalous Transport Due to Shear Alfvén Waves

1981 ◽  
Vol 46 (26) ◽  
pp. 1675-1678 ◽  
Author(s):  
W. W. Lee ◽  
M. S. Chance ◽  
H. Okuda
Keyword(s):  
Alfven Waves ◽  
Anomalous Transport ◽  
Alfvén Waves ◽  
Shear Alfven Waves

scholarly journals 2D continuous spectrum of shear Alfvén waves in the presence of a magnetic island

2011 ◽  
Vol 53 (2) ◽  
pp. 025009 ◽  
Author(s):  
Alessandro Biancalani ◽  
Liu Chen ◽  
Francesco Pegoraro ◽  
Fulvio Zonca
Keyword(s):  
Continuous Spectrum ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Magnetic Island ◽  
Shear Alfven Waves

scholarly journals High-n ideal and resistive shear Alfvén waves in tokamaks

1985 ◽  
Vol 161 (1) ◽  
pp. 21-47 ◽  
Author(s):  
C.Z Cheng ◽  
Liu Chen ◽  
M.S Chance
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Shear Alfven Waves

Concerning the Dynamics of Energetic Protons in Coronal Magnetic Loops: Dispersion Effects of Alfven Waves

1985 ◽  
Vol 107 ◽  
pp. 559-559
Author(s):  
V. A. Mazur ◽  
A. V. Stepanov
Keyword(s):  
Magnetic Field ◽  
Wave Dispersion ◽  
Alfven Waves ◽  
Alfven Wave ◽  
Wave Number ◽  
Alfvén Waves ◽  
Coronal Loops ◽  
Coronal Magnetic Loops ◽  
The Magnetic Field ◽  
Solar Coronal

It is shown that the existence of plasma density inhomogeneities (ducts) elongated along the magnetic field in coronal loops, and of Alfven wave dispersion, associated with the taking into account of gyrotropy U ≡ ω/ωi ≪ 1 (Leonovich et al., 1983), leads to the possibility of a quasi-longitudinal k⊥ < √U k‖ propagation (wave guiding) of Alfven waves. Here ω is the frequency of Alfven waves, ωi is the proton gyrofrequency, and k is the wave number. It is found that with the parameter ξ = ω2 R/ωi A > 1, where R is the inhomogeneity scale of a loop across the magnetic field, and A is the Alfven wave velocity, refraction of Alfven waves does not lead, as contrasted to Wentzel's inference (1976), to the waves going out of the regime of quasi-longitudinal propagation. As the result, the amplification of Alfven waves in solar coronal loops can be important. A study is made of the cyclotron instability of Alfven waves under solar coronal conditions.

Kinetic simulations of electron response to shear Alfvén waves in magnetospheric plasmas

2004 ◽  
Vol 11 (4) ◽  
pp. 1277-1284 ◽  
Author(s):  
C. E. J. Watt ◽  
R. Rankin ◽  
R. Marchand
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Shear Alfven Waves

Theory of shear Alfvén waves in toroidal plasmas

1995 ◽  
Vol T60 ◽  
pp. 81-90 ◽  
Author(s):  
Liu Chen ◽  
Fulvio Zonca
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Toroidal Plasmas ◽  
Shear Alfven Waves

Theory of Cowling channel formation by reflection of shear Alfven waves from the auroral ionosphere

2013 ◽  
Vol 118 (10) ◽  
pp. 6416-6425 ◽  
Author(s):  
A. Yoshikawa ◽  
O. Amm ◽  
H. Vanhamäki ◽  
A. Nakamizo ◽  
R. Fujii
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Auroral Ionosphere ◽  
Channel Formation ◽  
Shear Alfven Waves
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