THE SUBSURFACE-SHEAR-SHAPED SOLAR αΩ DYNAMO

V. V. Pipin, A. G. Kosovichev

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Abstract

We propose a solar dynamo model distributed in the bulk of the convection zone with toroidal magnetic-field flux concentrated in a near-surface layer. We show that if the boundary conditions at the top of the dynamo region allow the large-scale toroidal magnetic fields to penetrate close to the surface, then the modeled butterfly diagram for the toroidal magnetic field in the upper convection zone is formed by the subsurface rotational shear layer. The model is in agreement with observed properties of the magnetic solar cycle.

Original languageEnglish (US)
Article numberL45
JournalAstrophysical Journal Letters
Volume727
Issue number2
DOIs
StatePublished - Feb 1 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Sun: dynamo
  • dynamo
  • magnetohydrodynamics (MHD)

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