MHD waves generated by high-frequency photospheric vortex motions

V. Fedun*, S. Shelyag, G. Verth, M. Mathioudakis, R. Erdélyi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)
17 Downloads (Pure)

Abstract

In this paper, we discuss simulations of MHD wave generation and propagation through a threedimensional open magnetic flux tube in the lower solar atmosphere. By using self-similar analytical solutions for modelling the magnetic field in Cartesian coordinate system, we have constructed a 3-D magnetohydrostatic configuration which is used as the initial condition for non-linear MHD wave simulations. For a driver we have implemented a highfrequency vortex-type motion at the footpoint region of the open magnetic flux tube. It is found that the implemented swirly source is able to excite different types of wave modes, i.e. sausage, kink and torsional Alfvén modes. Analysing these waves by magneto-seismology tools could provide insight into the magnetic structure of the lower solar atmosphere.

Original languageEnglish
Pages (from-to)1029-1035
Number of pages7
JournalAnnales Geophysicae
Volume29
Issue number6
DOIs
Publication statusPublished - 16 Jun 2011

Bibliographical note

Publisher Copyright:
© Author(s) 2011.

Keywords

  • And astronomy (Photosphere and chromosphere)
  • Astrophysics
  • Solar physics

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Geology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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