Photospheric magnetic vortex structures

S. Shelyag, V. Fedun, F. P. Keenan, R. Erdelyi, M. Mathioudakis

Research output: Contribution to journalArticle

27 Citations (Scopus)
174 Downloads (Pure)

Abstract

Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere. Baroclinic motions of plasma in non-magnetic granules are the primary source of vorticity in granular regions of the solar photosphere, however, there is a significantly more efficient mechanism of vorticity production in strongly magnetised intergranular lanes. These swirly motions of plasma in intergranular magnetic field concentrations could be responsible for the generation of different types of MHD wave modes, for example, kink, sausage and torsional Alfven waves. These waves could transport a relevant amount of energy from the lower solar atmosphere and contribute to coronal plasma heating.
Original languageEnglish
Pages (from-to)883-887
JournalANNALES GEOPHYSICAE
Volume29
DOIs
Publication statusPublished - 2011

ASJC Scopus subject areas

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

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