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

Jukka Heikkinen, Timo Pättikangas, G. Devillers

Research output: Contribution to journalArticleScientificpeer-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 languageEnglish
Pages (from-to)231 - 236
Number of pages6
JournalJournal of Plasma Physics
Volume46
Issue number2
DOIs
Publication statusPublished - 1991
MoE publication typeA1 Journal article-refereed

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pumps
dipoles
harmonics
decay
wave interaction
electrostatics
coefficients

Cite this

Heikkinen, Jukka ; Pättikangas, Timo ; Devillers, G. / On the decay of a dipole pump wave to half-harmonics. In: Journal of Plasma Physics. 1991 ; Vol. 46, No. 2. pp. 231 - 236.
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On the decay of a dipole pump wave to half-harmonics. / Heikkinen, Jukka; Pättikangas, Timo; Devillers, G.

In: Journal of Plasma Physics, Vol. 46, No. 2, 1991, p. 231 - 236.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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

VL - 46

SP - 231

EP - 236

JO - Journal of Plasma Physics

JF - Journal of Plasma Physics

SN - 0022-3778

IS - 2

ER -