On the decay of a dipole pump wave to half-harmonics

Jukka Heikkinen; Timo Pättikangas; G. Devillers

doi:10.1017/S002237780001607X

On the decay of a dipole pump wave to half-harmonics

Jukka Heikkinen
, Timo Pättikangas
, G. Devillers

Helsinki University of Technology
Culham Science Centre

Research output: Contribution to journal › Article › Scientific › peer-review

4 Citations (Scopus)

Abstract

Starting from a three-wave interaction coefficient for a homogeneous Vlasov plasma, we show that the parametric decay to half-harmonics has zero growth rate if the wavenumber of the pump wave vanishes. Earlier proofs of this fact for electrostatic decay modes are thus extended for a general case. As a specific example, we study the decay of a fast magnetosonic wave to two slow waves.

Original language	English
Pages (from-to)	231 - 236
Number of pages	6
Journal	Journal of Plasma Physics
Volume	46
Issue number	2
DOIs	https://doi.org/10.1017/S002237780001607X
Publication status	Published - 1991
MoE publication type	A1 Journal article-refereed

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title = "On the decay of a dipole pump wave to half-harmonics",

abstract = "Starting from a three-wave interaction coefficient for a homogeneous Vlasov plasma, we show that the parametric decay to half-harmonics has zero growth rate if the wavenumber of the pump wave vanishes. Earlier proofs of this fact for electrostatic decay modes are thus extended for a general case. As a specific example, we study the decay of a fast magnetosonic wave to two slow waves. ",

author = "Jukka Heikkinen and Timo P{\"a}ttikangas and G. Devillers",

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T1 - On the decay of a dipole pump wave to half-harmonics

AU - Heikkinen, Jukka

AU - Pättikangas, Timo

AU - Devillers, G.

N1 - Project code: YDI0030

PY - 1991

Y1 - 1991

N2 - Starting from a three-wave interaction coefficient for a homogeneous Vlasov plasma, we show that the parametric decay to half-harmonics has zero growth rate if the wavenumber of the pump wave vanishes. Earlier proofs of this fact for electrostatic decay modes are thus extended for a general case. As a specific example, we study the decay of a fast magnetosonic wave to two slow waves.

AB - Starting from a three-wave interaction coefficient for a homogeneous Vlasov plasma, we show that the parametric decay to half-harmonics has zero growth rate if the wavenumber of the pump wave vanishes. Earlier proofs of this fact for electrostatic decay modes are thus extended for a general case. As a specific example, we study the decay of a fast magnetosonic wave to two slow waves.

U2 - 10.1017/S002237780001607X

DO - 10.1017/S002237780001607X

M3 - Article

SN - 0022-3778

VL - 46

SP - 231

EP - 236

JO - Journal of Plasma Physics

JF - Journal of Plasma Physics

IS - 2

ER -

On the decay of a dipole pump wave to half-harmonics

Abstract

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