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arxiv: 1611.05978 · v1 · pith:WBOZ2Q6Qnew · submitted 2016-11-18 · 🌌 astro-ph.SR

A viable non-axisymmetric non-force-free field to represent solar active regions

classification 🌌 astro-ph.SR
keywords fieldactivemagneticnon-axisymmetricnon-force-freemagnetogramsregionssolar
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A combination of analytical calculations and vectormagnetogram data are utilized to develop a non-axisymmetric non-force-free magnetic field and asses its viability in describing solar active regions. For the purpose, we construct a local spherical shell where a planar surface, tangential to the inner sphere, represents a Cartesian cutout of an active region. The magnetic field defined on the surface is then correlated with magnetograms. The analysis finds the non-axisymmetric non-force-free magnetic field, obtained by a superposition of two linear-force-free fields, correlates reasonably well with magnetograms.

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