Resonant absorption as mode conversion? II. Temporal ray bundle

Christopher Hanson; Paul Stuart Cally

doi:10.1007/s11207-010-9681-6

Resonant absorption as mode conversion? II. Temporal ray bundle

Christopher Hanson
, Paul Stuart Cally

School of Mathematics

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

6 Citations (Scopus)

Abstract

A fast-wave pulse in a simple, cold, inhomogeneous MHD model plasma is constructed by Fourier superposition over frequency of harmonic waves that are singular at their respective Alfven resonances. The pulse partially reflects before reaching the resonance layer, but also partially tunnels through to it to convert to an Alfven wave. The exact absorption/conversion coefficient for the pulse is shown to be given precisely by a function of transverse wavenumber tabulated in Paper I of this sequence, and to be independent of frequency and pulse width. A? 2010 Springer Science+Business Media B.V.

Original language	English
Pages (from-to)	105 - 110
Number of pages	6
Journal	Solar Physics
Volume	269
Issue number	1
DOIs	https://doi.org/10.1007/s11207-010-9681-6
Publication status	Published - 2011

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abstract = "A fast-wave pulse in a simple, cold, inhomogeneous MHD model plasma is constructed by Fourier superposition over frequency of harmonic waves that are singular at their respective Alfven resonances. The pulse partially reflects before reaching the resonance layer, but also partially tunnels through to it to convert to an Alfven wave. The exact absorption/conversion coefficient for the pulse is shown to be given precisely by a function of transverse wavenumber tabulated in Paper I of this sequence, and to be independent of frequency and pulse width. A? 2010 Springer Science+Business Media B.V.",

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AU - Cally, Paul Stuart

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AB - A fast-wave pulse in a simple, cold, inhomogeneous MHD model plasma is constructed by Fourier superposition over frequency of harmonic waves that are singular at their respective Alfven resonances. The pulse partially reflects before reaching the resonance layer, but also partially tunnels through to it to convert to an Alfven wave. The exact absorption/conversion coefficient for the pulse is shown to be given precisely by a function of transverse wavenumber tabulated in Paper I of this sequence, and to be independent of frequency and pulse width. A? 2010 Springer Science+Business Media B.V.

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DO - 10.1007/s11207-010-9681-6

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SP - 105

EP - 110

JO - Solar Physics

JF - Solar Physics

IS - 1

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Resonant absorption as mode conversion? II. Temporal ray bundle

Abstract

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