Resonant Absorption as Mode Conversion? II. Temporal Ray Bundle

Autor:	Hanson, C S, Cally, P S
Rok vydání:	2010
Předmět:	Astrophysics - Solar and Stellar Astrophysics
Druh dokumentu:	Working Paper
DOI:	10.1007/s11207-010-9681-6
Popis:	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 mode 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. Comment: 6 pages, 4 figures, accepted (15 Nov 2010) by Solar Physics. Ancillary file (animation) attached
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1011.3808 Zobrazit plný text záznamu View this record from Arxiv