Simulation study of radiation generation by upper-hybrid waves in space plasmas

B. Eliasson, P.K. Shukla

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In planetary magnetospheres and in the Earth's ionosphere, continuum radiation has been frequently observed. By employing a semi-theoretical model and a Vlasov simulation code, it is shown that electromagnetic slow X (or Z) waves can be nonlinearly excited by a large amplitude upper-hybrid pump. In our process, the latter decays into electromagnetic and lower-hybrid waves. The growth rate of the parametric instability is numerically calculated and compared with simulation results from a direct Vlasov code. Both semi-theoretical and simulation results are in good agreement.
LanguageEnglish
Pages91-96
Number of pages6
JournalPhysics Letters A
Volume312
Issue number1-2
Early online date29 Apr 2003
DOIs
Publication statusPublished - 2 Jun 2003

Fingerprint

space plasmas
radiation
planetary magnetospheres
electromagnetism
Earth ionosphere
simulation
pumps
continuums
decay

Keywords

  • space physics
  • upper hybrid waves
  • lower hybrid waves
  • Z mode waves
  • astronomy
  • calculation
  • electric field
  • electromagnetic radiation
  • simulation
  • space
  • theoretical model

Cite this

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abstract = "In planetary magnetospheres and in the Earth's ionosphere, continuum radiation has been frequently observed. By employing a semi-theoretical model and a Vlasov simulation code, it is shown that electromagnetic slow X (or Z) waves can be nonlinearly excited by a large amplitude upper-hybrid pump. In our process, the latter decays into electromagnetic and lower-hybrid waves. The growth rate of the parametric instability is numerically calculated and compared with simulation results from a direct Vlasov code. Both semi-theoretical and simulation results are in good agreement.",
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Simulation study of radiation generation by upper-hybrid waves in space plasmas. / Eliasson, B.; Shukla, P.K.

In: Physics Letters A, Vol. 312, No. 1-2, 02.06.2003, p. 91-96.

Research output: Contribution to journalArticle

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AU - Eliasson, B.

AU - Shukla, P.K.

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AB - In planetary magnetospheres and in the Earth's ionosphere, continuum radiation has been frequently observed. By employing a semi-theoretical model and a Vlasov simulation code, it is shown that electromagnetic slow X (or Z) waves can be nonlinearly excited by a large amplitude upper-hybrid pump. In our process, the latter decays into electromagnetic and lower-hybrid waves. The growth rate of the parametric instability is numerically calculated and compared with simulation results from a direct Vlasov code. Both semi-theoretical and simulation results are in good agreement.

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