Subsurface Structure of Active Regions
Abstract
Magneto-convection simulations with horizontal, untwisted magnetic field advected into the domain at large (20Mm) depth spontaneously form magnetic loops which emerge as active regions. An active regions emerges as a fragmented, braided magnetic loop. This is what makes the magnetic flux first appear with mixed polarities, that then counter stream into the leading and following spots at the loop legs. After emergence, braided vertical legs are left behind which extend to large depths in the convection zone at the down flow boundaries of the large underlying convective cells. Movies of the emergence process and the subsurface structure underneath the active region will be presented.
- Publication:
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American Astronomical Society Meeting Abstracts #224
- Pub Date:
- June 2014
- Bibcode:
- 2014AAS...22410302S