Resonant absorption as mode conversion? II. Temporal ray bundle

Christopher Hanson, Paul Stuart Cally

Research output: Contribution to journalArticleResearchpeer-review

5 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 languageEnglish
Pages (from-to)105 - 110
Number of pages6
JournalSolar Physics
Volume269
Issue number1
DOIs
Publication statusPublished - 2011

Cite this

Hanson, Christopher ; Cally, Paul Stuart. / Resonant absorption as mode conversion? II. Temporal ray bundle. In: Solar Physics. 2011 ; Vol. 269, No. 1. pp. 105 - 110.
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Resonant absorption as mode conversion? II. Temporal ray bundle. / Hanson, Christopher; Cally, Paul Stuart.

In: Solar Physics, Vol. 269, No. 1, 2011, p. 105 - 110.

Research output: Contribution to journalArticleResearchpeer-review

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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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