Origins of Flow and Magnetic Structure Involved in Formation and Eruption of Solar Prominence


To clarify origins of the flow and magnetic structure involved in evolution of a solar prominence, we performed a three-dimensional magnetohydrodynamic simulation of an emerging twisted flux tube, where both flow and magnetic field pass freely through a solar surface. By analyzing Lagrangian displacements of magnetized plasma elements, we revealed how interactions between the flow and magnetic field proceeded during the formation and eruption of the prominence. This led us to the origins of the flow and magnetic structure involved in the evolution of the prominence; that is, we identified what causes diverging flow on U-loop, helical downdraft along rotating loop, acceleration and deceleration of downflow along S-loop, and partial emergence of W-loop, all of which played roles in dynamics and magnetism of the prominence.

Reference

Magara, T.
Journal of the Korean Astronomical Society, 54, 157



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Prominence in the solar sky (solar plasma cloud).


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