Nonlinear damping of a finite amplitude whistler wave due to modified two stream instability

Shinji Saito, Yasuhiro Nariyuki, Takayuki Umeda

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A two-dimensional, fully kinetic, particle-in-cell simulation is used to investigate the nonlinear development of a parallel propagating finite amplitude whistler wave (parent wave) with a wavelength longer than an ion inertial length. The cross field current of the parent wave generates short-scale whistler waves propagating highly oblique directions to the ambient magnetic field through the modified two-stream instability (MTSI) which scatters electrons and ions parallel and perpendicular to the magnetic field, respectively. The parent wave is largely damped during a time comparable to the wave period. The MTSI-driven damping process is proposed as a cause of nonlinear dissipation of kinetic turbulence in the solar wind.

Original languageEnglish
Article number072105
JournalPhysics of Plasmas
Volume22
Issue number7
DOIs
StatePublished - 2015/07/01

ASJC Scopus subject areas

  • Condensed Matter Physics

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