Formation and decay of sunspots

Gert Botha (Northumbria University, Newcastle)

Thursday 21st February, 2019 14:00-15:00 Maths 311B


A numerical model of idealised flux tubes will be used to discuss magnetoconvection around pores, sunspots and active regions in the upper layer of the solar convection zone. The model consists of a compressible plasma with density and temperature gradients that are evolved by the nonlinear magnetohydrodynamic equations. The formation and decay of these flux bundles in 2D and 3D wedge geometry give insights into the physical processes and flow patterns observed in the solar photosphere.

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