EXCITATION OF FIELD-ALIGNED SOUND WAVES BY ELECTRON STREAMS,

Abstract

Irregularities moving across the magnetic field in aurorae and electrojets are explained as sound waves excited by streaming electrons. A three-component gas dynamical analysis (neutrals, ions, electrons) predicts growth of waves propagating across the field with velocity (8 KT/3m)/2 provided the streaming velocity reaches a certain threshold which is somewhat higher than this value, and the waves will travel more slowly than (8 KT/3m)/2 when the electrons are a good deal faster than the threshold, which would account for an observed velocity spread. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1963
Accession Number
AD0413888

Entities

People

  • O. Buneman

Organizations

  • Stanford University

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Electrojets
  • Electrons
  • Excitation
  • Magnetic Fields
  • Sound Waves
  • Waves

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Molecular Photonics/Laser Physics
  • Space/Atmospheric Physics.

Technology Areas

  • Microelectronics