A new component of solar dynamics: North-south diverging flows migrating toward the equator with an 11 year period

J. G. Beck, L. Gizon, T. L. Duvall

Research output: Contribution to journalArticlepeer-review

Abstract

Time-distance helioseismology analysis of Dopplergrams provides maps of torsional oscillations and meridional flows. Meridional flow maps show a time-varying component that has a banded structure that matches the torsional oscillations with an equatorward migration over the solar cycle. The time-varying component of meridional flow consists of a flow diverging from the dominant latitude of magnetic activity. These maps are compared with other torsional oscillation maps and with magnetic flux maps, showing a strong correlation with active latitudes. These results demonstrate a strong link between the time-varying component of the meridional flow and the torsional oscillations.

Original languageEnglish (US)
Pages (from-to)L47-L50
JournalAstrophysical Journal
Volume575
Issue number1 II
DOIs
StatePublished - Aug 10 2002

Keywords

  • Sun: atmospheric motions
  • Sun: rotation

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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