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arXiv · 1310.5871

Sausage Mode Propagation in a Thick Magnetic Flux Tube

Anabele-Linda Pardi·Istvan Ballai·Alexandru Marcu·Beniamin Orza
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Abstract

The aim of this paper is to model the propagation of slow magnetohydrodynamic (MHD) sausage waves in a thick expanding magnetic flux tube in the context of the quiescent (VAL C) solar atmosphere. The propagation of these waves is found to be described by the Klein-Gordon equation. Using the governing MHD equations and the VAL C atmosphere model we study the variation of the cut-off frequency along and across the magnetic tube guiding the waves. Due to the radial variation of the cut-off frequency the flux tubes act as low frequency filters for waves.

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Anabele-Linda Pardi, Istvan Ballai, Alexandru Marcu, Beniamin Orza. 2013-10-22. Sausage Mode Propagation in a Thick Magnetic Flux Tube. https://doi.org/10.1007/s11207-013-0380-y

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