Abstract

Magnetohydrodynamics![Figure][1] An example of one of the solar magnetic field simulations CREDIT: HIDEYUKI HOTTA/CHIBA UNIVERSITY An accurate simulation of solar magnetic fields must reproduce both the large-scale dynamo and small-scale turbulence. Simply increasing the computational resolution does not always help, because it can prevent the 11-year solar cycle from emerging. Hotta et al. show how both large- and small-scale phenomena can be reproduced in some of the highest-resolution simulations yet available. This will improve our understanding of both the solar magnetic field and other turbulent magnetohydrodynamic systems. Science , this issue p. [1427][2] [1]: pending:yes [2]: /lookup/doi/10.1126/science.aad1893

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