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

B. Eliasson, P.K. Shukla

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)91-96
Number of pages6
JournalPhysics Letters A
Issue number1-2
Early online date29 Apr 2003
Publication statusPublished - 2 Jun 2003


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


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