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Quasilinear theory for oblique low-frequency instabilities in streaming cold plasmas

Frank Verheest (UGent)
(1994) PLANETARY AND SPACE SCIENCE. 42(10). p.883-888
Author
Organization
Abstract
A quasilinear theory is given which deals with the modification of equilibrium streaming in a multifluid cold plasma, due to the growth of unstable low-frequency waves which propagate at an angle to the external magnetic field. Expressions are obtained for the levels of magnetic field fluctuations at saturation, for both the shear and the fast Alfven modes. If initially there is enough energy in the relative streaming, then the highest levels of turbulence occur for the fast mode propagating at a nonzero angle, rather than for the shear mode, although the growth rate for both is greatest at parallel propagation. As an example, we briefly mention the saturation of nonresonant instabilities near comets.
Keywords
MAGNETIC-FIELD OBSERVATIONS, SOLAR-WIND, COMETARY

Citation

Please use this url to cite or link to this publication:

Chicago
Verheest, Frank. 1994. “Quasilinear Theory for Oblique Low-frequency Instabilities in Streaming Cold Plasmas.” Planetary and Space Science 42 (10): 883–888.
APA
Verheest, F. (1994). Quasilinear theory for oblique low-frequency instabilities in streaming cold plasmas. PLANETARY AND SPACE SCIENCE, 42(10), 883–888.
Vancouver
1.
Verheest F. Quasilinear theory for oblique low-frequency instabilities in streaming cold plasmas. PLANETARY AND SPACE SCIENCE. 1994;42(10):883–8.
MLA
Verheest, Frank. “Quasilinear Theory for Oblique Low-frequency Instabilities in Streaming Cold Plasmas.” PLANETARY AND SPACE SCIENCE 42.10 (1994): 883–888. Print.
@article{191816,
  abstract     = {A quasilinear theory is given which deals with the modification of equilibrium streaming in a multifluid cold plasma, due to the growth of unstable low-frequency waves which propagate at an angle to the external magnetic field. Expressions are obtained for the levels of magnetic field fluctuations at saturation, for both the shear and the fast Alfven modes. If initially there is enough energy in the relative streaming, then the highest levels of turbulence occur for the fast mode propagating at a nonzero angle, rather than for the shear mode, although the growth rate for both is greatest at parallel propagation. As an example, we briefly mention the saturation of nonresonant instabilities near comets.},
  author       = {Verheest, Frank},
  issn         = {0032-0633},
  journal      = {PLANETARY AND SPACE SCIENCE},
  keyword      = {MAGNETIC-FIELD OBSERVATIONS,SOLAR-WIND,COMETARY},
  language     = {eng},
  number       = {10},
  pages        = {883--888},
  title        = {Quasilinear theory for oblique low-frequency instabilities in streaming cold plasmas},
  url          = {http://dx.doi.org/10.1016/0032-0633(94)90070-1},
  volume       = {42},
  year         = {1994},
}

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