Whistler wave propagation and interplay between electron inertia and Larmor radius effects

2019 ◽  
Vol 26 (4) ◽  
pp. 042106 ◽  
Author(s):  
Garima Joshi ◽  
G. Ravi ◽  
S. Mukherjee
Keyword(s):  
Wave Propagation ◽  
Whistler Wave ◽  
Larmor Radius ◽  
Electron Inertia

Whistler wave propagation in a bounded collisional magnetoplasma

2006 ◽  
Vol 74 (4) ◽  
pp. 425-438 ◽  
Author(s):  
A V Kudrin ◽  
V A Es'kin
Keyword(s):  
Wave Propagation ◽  
Whistler Wave

Effect of boundary conditions on radial mode structure of whistlers

1984 ◽  
Vol 31 (2) ◽  
pp. 197-208 ◽  
Author(s):  
R. W. Boswell
Keyword(s):  
Boundary Conditions ◽  
Whistler Wave ◽  
Radial Mode ◽  
Mode Structure ◽  
Electron Inertia

The dispersion of the radial eigenmodes of a cylindrical m = 1 whistler wave with Ωi; ≪ ω < Ωe ≪ ωpe is investigated for both conducting and insulating boundaries. The effects of electron inertia and resistivity on the modes are discussed.

Coronal waves: propagation in the multi-fluid description

2005 ◽  
Vol 364 (1839) ◽  
pp. 537-540 ◽  
Author(s):  
Redouane Mecheri ◽  
Eckart Marsch
Keyword(s):  
Wave Propagation ◽  
Plane Wave ◽  
Perturbation Analysis ◽  
Fluid Model ◽  
Wave Perturbation ◽  
Fourier Plane ◽  
Electron Inertia ◽  
Resonance Frequencies ◽  
Wave Effects ◽  
Waves Propagation

We study wave propagation in the low-β coronal plasma using a collisionless multi-fluid model. Neglecting the electron inertia, this model allows us to take into account ion-cyclotron wave effects that are absent in the magnetohydrodynamics model. To accomplish this, we perform a Fourier plane-wave perturbation analysis. Solving numerically the dispersion relations obtained from a two- and three-fluid model, dispersion curves for representative parameters of the solar corona are presented. The results reveal the presence of resonance frequencies that might play a role in coronal heating.

scholarly journals Comments on ’’Whistler wave propagation in a large magnetoplasma’’

1977 ◽  
Vol 20 (11) ◽  
pp. 1960 ◽  
Author(s):  
B. D. McVey ◽  
J. E. Scharer
Keyword(s):  
Wave Propagation ◽  
Whistler Wave

scholarly journals A reduced Landau-gyrofluid model for magnetic reconnection driven by electron inertia

2018 ◽  
Vol 84 (4) ◽  
Author(s):  
E. Tassi ◽  
D. Grasso ◽  
D. Borgogno ◽  
T. Passot ◽  
P. L. Sulem
Keyword(s):  
Kinetic Energy ◽  
Electron Temperature ◽  
Magnetic Reconnection ◽  
Magnetic Energy ◽  
Temperature Fluctuations ◽  
The Other ◽  
Landau Damping ◽  
Larmor Radius ◽  
Electron Inertia ◽  
Other Hand

An electromagnetic reduced gyrofluid model for collisionless plasmas, accounting for electron inertia, finite ion Larmor radius effects and Landau-fluid closures for the electron fluid is derived by means of an asymptotic expansion from a parent gyrofluid model. In the absence of terms accounting for Landau damping, the model is shown to possess a non-canonical Hamiltonian structure. The corresponding Casimir invariants are derived and use is made thereof, in order to obtain a set of normal field variables, in terms of which the Poisson bracket and the model equations take a remarkably simple form. The inclusion of perpendicular temperature fluctuations generalizes previous Hamiltonian reduced fluid models and, in particular, the presence of ion perpendicular gyrofluid temperature fluctuations reflects into the presence of two new Lagrangian invariants governing the ion dynamics. The model is applied, in the cold-ion limit, to investigate numerically a magnetic reconnection problem. The Landau damping terms are shown to reduce, by decreasing the electron temperature fluctuations, the linear reconnection rate and to delay the nonlinear island growth. The saturated island width, on the other hand, is independent of Landau damping. The fraction of magnetic energy converted into perpendicular kinetic energy also appears to be unaffected by the Landau damping terms, which, on the other hand, dissipate parallel kinetic energy as well as free energy due to density and electron temperature fluctuations.

Whistler wave propagation and whistler wave antenna radiation resistance measurements

2005 ◽  
Vol 33 (2) ◽  
pp. 637-646 ◽  
Author(s):  
W.E. Amatucci ◽  
D.D. Blackwell ◽  
D.N. Walker ◽  
G. Gatling ◽  
G. Ganguli
Keyword(s):  
Wave Propagation ◽  
Radiation Resistance ◽  
Whistler Wave ◽  
Antenna Radiation ◽  
Wave Antenna
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