Simulations of Solar and Stellar Dynamos and Their Theoretical Interpretation

Document Type

Article

Publication Date

10-1-2023

Abstract

We review the state of the art of three dimensional numerical simulations of solar and stellar dynamos. We summarize fundamental constraints of numerical modelling and the techniques to alleviate these restrictions. Brief summary of the relevant observations that the simulations seek to capture is given. We survey the current progress of simulations of solar convection and the resulting large-scale dynamo. We continue to studies that model the Sun at different ages and to studies of stars of different masses and evolutionary stages. Both simulations and observations indicate that rotation, measured by the Rossby number which is the ratio of rotation period and convective turnover time, is a key ingredient in setting the overall level and characteristics of magnetic activity. Finally, efforts to understand global 3D simulations in terms of mean-field dynamo theory are discussed.

Identifier

85165226618 (Scopus)

Publication Title

Space Science Reviews

External Full Text Location

https://doi.org/10.1007/s11214-023-01005-6

e-ISSN

15729672

ISSN

00386308

Issue

7

Volume

219

Grant

207430

Fund Ref

Science and Technology Facilities Council

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