Theory Keynote 2: Generation of magnetic field in the Sun and Stars. Why are we still arguing?

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• Steven Tobias (University of Leeds)
• Monday 28 November 2022, 14:45-15:45
• Seminar Room 1, Newton Institute.

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DY2W03 - Modeling, observing and understanding flows and magnetic fields in the Earth's core and in the Sun

In this talk I will review some of the theoretical issues facing dynamo theorists in explaining the origin of large-scale magnetic activity in the Sun and other solar-type stars. I will stress that the theoretical obstacles here are somewhat different from those that keep the geodynamo community awake at night. Having given a brief introduction to the theory of turbulent statistical dynamos, I will review the various “cartoon” scenarios for solar dynamo action. I will finish by suggesting that a way forward may be found in “Direct Statistical Simulation”, though several theoretical and computational hurdles remain to be addressed.

This talk is part of the Isaac Newton Institute Seminar Series series.

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