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| Paper: |
Fine-scale Magnetic Structures and Flows in Sunspot Simulations |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
253 |
| Authors: |
Kitiashvili, I. N.; Kosovichev, A. G.; Wray, A. A.; Mansour, N. N. |
| Abstract: |
One of most intriguing processes on the Sun is the formation and
dynamics of sunspots and active regions, where magneto-convective
conditions are very different from quiet Sun regions.
High-resolution observations from Hinode and numerical simulations
shed light into these processes. In our 3D radiative MHD simulations
we take into account real-gas equation of state, ionization and
excitation of all abundant spices, turbulent and magnetic effects.
We present recent results of numerical simulations of a top layer of
the convective zone and the photosphere in the presence of magnetic
field of various strength and inclination. The simulation results
explain the filamentary organization of penumbra, reveal the
mechanisms of the Evershed effect and the sea-serpent behavior of magnetic field lines,
and show the subsurface dynamics of umbral dots as a natural
consequence of magnetoconvection processes. |
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