Flux concentrations in turbulent convection

Petri J. Käpylä, Axel Brandenburg, Nathan Kleeorin, Maarit J. Mantere, Igor Rogachevskii

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We present preliminary results from high resolution magneto-convection simulations where we find the formation of flux concentrations from an initially uniform magnetic field. The structures appear in roughly ten convective turnover times and live close to a turbulent diffusion time. The time scales are compatible with the negative effective magnetic pressure instability (NEMPI), although structure formation is not restricted to regions where the effective magnetic pressure is negative.

Original languageEnglish
Title of host publicationSolar and Astrophysical Dynamos and Magnetic Activity
EditorsAlexander G. Kosovichev, Elisabete de Gouveia Dal Pino, Yihua Yan
Number of pages6
StatePublished - 1 Aug 2012

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • MHD
  • Sun: magnetic fields
  • turbulence

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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