Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007pasj...59l..57m&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.59, No.6, p.L57-L55
Astronomy and Astrophysics
Astronomy
Scientific paper
We report aresult, that the emergence of a subsurface magnetic field naturally reproduces the feature of the global magnetic configuration observed in solar filaments. This was obtained by performing a three-dimensional simulation of atwisted flux tube that emerges in the shape of a multi-Omega-loops. This develops amagnetic structure that has remarkable similarities to the structure of afilament, in that the inner part of the twisted flux tube can be applied to the main body of afilament, while the outer part is reminiscent of observations of filament feet and acoronal arcade overlying the main body of afilament. Based on the result, we concluded that the orientation of filaments observed on the Sun may have its origin in the handedness of a twisted magnetic field below the solar surface.
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