Hunting down the cause of solar magnetism

Mariangela Viviani, Ameya Prabhu, Jörn Warnecke, Lucia Duarte, Johannes Pekkilä, Matthias Rheinhardt, Maarit Käpylä

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaKirjan luku tai artikkeli muussa julkaisussaScientific

Abstrakti

To understand solar and stellar dynamos combining local and global numerical modelling with long-term observations is a challenging task: even with state of the art computational methods and resources, the stellar parameter regime remains unattainable. Our goal is to relax some approximations, in order to simulate more realistic systems, and try to connect the results with theoretical predictions and state-of-the-art observations. We present here the first test-field measurements from our higher-resolution runs with improved heat conduction description. They indicate significant changes in the profiles of the most crucial inductive effect related to solar and stellar dynamo mechanisms. Higher resolution runs, currently undertaken, will bring us into an even more turbulent regime, in which we will be able to study, for the first time, the interaction of small- and large-scale dynamos in a quantitative way.
AlkuperäiskieliEnglanti
OtsikkoHigh Performance Computing Science and Engineering
ToimittajatP. Bastina, D. Kranzmüller, H. Breuchle
JulkaisupaikkaGarching/Munich
TilaJulkaistu - helmik. 2021
OKM-julkaisutyyppiEi oikeutettu

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