Magnetic Flux Emergence In Granular Convection: Radiative MHD Simulations And Hinode SOT Observations

Astronomy and Astrophysics – Astronomy

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Scientific paper

We model the emergence of buoyant magnetic flux from the convection zone into the photosphere by means of 3D radiative MHD simulations using the MURaM code. In a series of simulations, we study how an initially buoyant magnetic flux tube rises in the presence of granular convection. The simulations take into account the effects of radiative energy exchange, ionization effects in the equation of state and compressibility. An emphasis of this talk is the comparison of observational diagnostics from the simulations with recent observations from Hinode SOT.

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