Solar Physics

, Volume 157, Issue 1–2, pp 75–102 | Cite as

Dissipative MHD solutions for resonant AlfvÉn waves in 1-dimensional magnetic flux tubes

  • Marcel Goossens
  • Michail S. Ruderman
  • Joseph V. Hollweg
Article

Abstract

The present paper extends the analysis by Sakurai, Goossens, and Hollweg (1991) on resonant Alfvén waves in nonuniform magnetic flux tubes. It proves that the fundamental conservation law for resonant Alfvén waves found in ideal MHD by Sakurai, Goossens, and Hollweg remains valid in dissipative MHD. This guarantees that the jump conditions of Sakurai, Goossens, and Hollweg, that connect the ideal MHD solutions forξr, andP′ across the dissipative layer, are correct. In addition, the present paper replaces the complicated dissipative MHD solutions obtained by Sakurai, Goossens, and Hollweg forξr, andP′ in terms of double integrals of Hankel functions of complex argument of order\(\frac{1}{3}\) with compact analytical solutions that allow a straightforward mathematical and physical interpretation. Finally, it presents an analytical dissipative MHD solution for the component of the Lagrangian displacement in the magnetic surfaces perpendicular to the magnetic field linesξ⊥ which enables us to determine the dominant dynamics of resonant Alfvén waves in dissipative MHD.

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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Marcel Goossens
    • 1
  • Michail S. Ruderman
    • 1
    • 3
  • Joseph V. Hollweg
    • 2
  1. 1.Centre for Plasma AstrophysicsK.U. LeuvenHeverleeBelgië
  2. 2.Space Science Center, Institute for the Study of Earth, Oceans and SpaceUniversity of New HampshireUSA
  3. 3.Institute for Problems in MechanicsRussian Academy of SciencesMoscowRussia

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