Modulation of whistler waves in nonthermal plasmas

Journal Article · Tue Feb 15 04:00:00 EST 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3556125· OSTI ID:21535161

Rios, L A; Galvao, R M. O. ^[1]

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1. Centro Brasileiro de Pesquisas Fisicas and Instituto Nacional de Ciencia e Tecnologia de Sistemas Complexos, Rua Xavier Sigaud 150, 22290-180 Rio de Janeiro (Brazil)

The modulation of whistler waves in nonthermal plasmas is investigated. The dynamics of the magnetized plasma is described by the fluid equations and the electron velocity distribution function is modeled via a nonthermal {kappa} distribution. A multiscale perturbation analysis based on the Krylov-Bogoliubov-Mitropolsky method is carried out and the nonlinear Schroedinger equation governing the modulation of the high-frequency whistler is obtained. The effect of the superthermal electrons on the stability of the wave envelope and soliton formation is discussed and a comparison with previous results is presented.

• OSTI ID: 21535161
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 2 Vol. 18; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DIFFERENTIAL EQUATIONS
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FUNCTIONS
LEPTONS
MODULATION
NOISE
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
PLASMA WAVES
QUASI PARTICLES
RADIATIONS
RADIO NOISE
RADIOWAVE RADIATION
SCHROEDINGER EQUATION
SOLITONS
WAVE EQUATIONS
WHISTLERS