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Birkeland Currents in Cosmic Plasma

  • Anthony L. Peratt
Chapter

Abstract

An electromotive force ϕ = ∫ v × B⋅ dl giving rise to electrical currents in conducting media is produced wherever a relative perpendicular motion of plasma and magnetic field lines exist (Sect. 3.5.2). An example of this is the sunward convective motion of the magnetospheric plasma that cuts the earth’s dipole field lines through the equatorial plane, thereby producing a Lorentz force that drives currents within the auroral circuit. The tendency for charged particles to follow magnetic lines of force and therefore produce field-aligned currents has resulted in the widespread use of the term “Birkeland Currents” in space plasma physics.

Keywords

Filamentary Structure Axial Current Relativistic Electron Beam Axial Magnetic Field Interstellar Cloud 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Anthony L. Peratt
    • 1
  1. 1.Los AlamosUSA

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