Kappa distribution function effects on landau damping in electrostatic vlasov simulation

Yue Hung Chen, Yasutaro Nishimura, Chio Zong Cheng

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4 Citations (Scopus)


The non-thermal high-energy electron effects on Langmuir wave-particle interaction are investigated using an initial value approach. A Vlasov-Poisson simulation is employed based on the splitting scheme by Cheng and Knorr (1976). The kappa distribution function is taken as an example of non-thermal electrons. The modification is manifested as an increase in the Landau damping rate and a decrease in the real frequency for a long wavelength limit. A part of the analyses using the modified plasma dispersion function (Summers and Thorne 1991) is reproduced for l = 2, 3 and 6. The dispersion relation from the initial value simulation and the plasma dispersion function compare favorably. (PACS numbers: 52.35.Fp, 52.35.Sb, 52.65.Ff).

Original languageEnglish
Pages (from-to)273-281
Number of pages9
JournalTerrestrial, Atmospheric and Oceanic Sciences
Issue number2
Publication statusPublished - 2013 Apr

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)

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