192 citations · 1.3k across the 41 of their papers we have counts for
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Plasmoid ejections driven by dynamo action underneath a spherical surface
Jörn Warnecke, Axel Brandenburg, Dhrubaditya Mitra
We present a unified three-dimensional model of the convection zone and upper atmosphere of the Sun in spherical geometry. In this model, magnetic fields, generated by a helically…
Dynamo generated field emergence through recurrent plasmoid ejections
Jörn Warnecke, Axel Brandenburg
Magnetic buoyancy is believed to drive the transport of magnetic flux tubes from the convection zone to the surface of the Sun. The magnetic fields form twisted loop-like structure…
Recurrent flux emergence from dynamo-generated fields
Jörn Warnecke, Axel Brandenburg
We investigate the emergence of a large-scale magnetic field. This field is dynamo-generated by turbulence driven with a helical forcing function. Twisted arcade-like field structu…
Surface appearance of dynamo-generated large-scale fields
J. Warnecke, A. Brandenburg
Twisted magnetic fields are frequently seen to emerge above the visible surface of the Sun. This emergence is usually associated with the rise of buoyant magnetic flux structures.…