Abstract
| Original language | English |
|---|---|
| Article number | 052115 |
| Number of pages | 6 |
| Journal | Physics of Plasmas |
| Volume | 13 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 22 May 2006 |
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Keywords
- plasma
- instability
- velocity shear
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Electron parallel-flow shear driven low-frequency electromagnetic modes in collisionless magnetoplasma. / Shukla, P. K.; Eliasson, B.; Koepke, M.
In: Physics of Plasmas, Vol. 13, No. 5, 052115, 22.05.2006.Research output: Contribution to journal › Article
TY - JOUR
T1 - Electron parallel-flow shear driven low-frequency electromagnetic modes in collisionless magnetoplasma
AU - Shukla, P. K.
AU - Eliasson, B.
AU - Koepke, M.
PY - 2006/5/22
Y1 - 2006/5/22
N2 - The free energy associated with shear in the equilibrium parallel electron velocity is shown to be responsible for the excitation of low-frequency electromagnetic waves in collisionless magnetoplasma. New dispersion relations are derived by using the hydrodynamic equations for the electron fluid, the magnetic-field-aligned (parallel) drift of which varies in one of the perpendicular directions, and by using a kinetic ion model, together with Ampère’s law and Poisson’s equation. The dispersion relations are analyzed both analytically and numerically for a set of parameters representative of a laboratory experiment. New filamentary instabilities are predicted.
AB - The free energy associated with shear in the equilibrium parallel electron velocity is shown to be responsible for the excitation of low-frequency electromagnetic waves in collisionless magnetoplasma. New dispersion relations are derived by using the hydrodynamic equations for the electron fluid, the magnetic-field-aligned (parallel) drift of which varies in one of the perpendicular directions, and by using a kinetic ion model, together with Ampère’s law and Poisson’s equation. The dispersion relations are analyzed both analytically and numerically for a set of parameters representative of a laboratory experiment. New filamentary instabilities are predicted.
KW - plasma
KW - instability
KW - velocity shear
UR - http://scitation.aip.org/content/aip/journal/pop/13/5/10.1063/1.2203605
U2 - 10.1063/1.2203605
DO - 10.1063/1.2203605
M3 - Article
VL - 13
JO - Physics of Plasmas
JF - Physics of Plasmas
SN - 1070-664X
IS - 5
M1 - 052115
ER -