Nonlinear interaction of kinetic Alfven wave with fast magnetosonic wave and turbulent spectrum

Journal Article · Fri Mar 15 04:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4794834· OSTI ID:22107672

Modi, K. V. ^[1]; Sharma, R. P. ^[1]

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1. Centre for Energy Studies, Indian Institute of Technology Delhi, Delhi 110016 (India)

In the present paper, authors have investigated nonlinear interaction of kinetic Alfven wave (KAW) and fast magnetosonic wave for intermediate {beta}-plasma (m{sub e}/m{sub i} Much-Less-Than {beta} Much-Less-Than 1). Authors have developed the set of dimensionless equations in the presence of ponderomotive nonlinearity due to KAW in the dynamics of fast magnetosonic wave. Numerical simulation has been carried out to study the effect of nonlinear coupling and resulting turbulent/power spectrum for the different angles of propagation of fast magnetosonic wave applicable to solar wind at 1 AU. The localization of KAW has been found which becomes more complex as the angle of propagation of fast magnetosonic wave decreases. Results also reveal the steepening of power spectrum as the angle of propagation decreases which can be responsible for heating and acceleration of plasma particles in solar wind. Relevance of the obtained result is pointed out with observation received by Cluster spacecraft for the solar wind 1 AU.

• OSTI ID: 22107672
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 20; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
COMPUTERIZED SIMULATION
EQUATIONS
MAGNETOACOUSTIC WAVES
NONLINEAR PROBLEMS
NUMERICAL ANALYSIS
PLASMA
PLASMA HEATING
PLASMA SIMULATION
PONDEROMOTIVE FORCE
SOLAR WIND
SPECTRA
TURBULENCE
WAVE PROPAGATION