Solar Physics

, Volume 289, Issue 4, pp 1203–1214 | Cite as

Sausage Mode Propagation in a Thick Magnetic Flux Tube

Article

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 the waves.

Keywords

Magnetohydrodynamics (MHD) Sun, waves 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Babes-Bolyai University Cluj-NapocaCluj-NapocaRomania
  2. 2.Solar Physics and Space Plasmas Research Centre (SP²RC)University of SheffieldSheffieldUK

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