Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.1713l&link_type=abstract
American Astronomical Society, SPD meeting #42, #17.13; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Current simulations show that buoyant convection zone flux ropes can emerge a significant fraction of their flux into the corona if they are highly twisted. However, the twist in these flux ropes is significantly higher than the twist observed at the photosphere in most active regions. It also appears to be higher than what is required if emerging flux, rather than surface motions, were to produce highly sheared pre-coronal-mass-ejection prominences. We study, via magnetohydrodynamical simulations, whether it is possible to dynamically emerge convection zone magnetic field in such a way as to reproduce either the low twist photospheric and coronal signatures of average sunspots or the highly sheared structures of prominences.
Leake Jason
Linton Mark
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