### 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

### Cite this

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*Physics of Plasmas*, vol. 13, no. 5, 052115. https://doi.org/10.1063/1.2203605

**Electron parallel-flow shear driven low-frequency electromagnetic modes in collisionless magnetoplasma.** / Shukla, P. K.; Eliasson, B.; Koepke, M.

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 -