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arXiv · 1504.01325

The Persistence of Apparent Non-Magnetostatic Equilibrium in NOAA 11035

Sarah A. Jaeggli
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Abstract

NOAA 11035 was a highly sheared active region that appeared in December 2009 early in the new activity cycle. The leading polarity sunspot developed a highly unusual feature in its penumbra, an opposite polarity pore with a strong magnetic field in excess of 3500 G along one edge, which persisted for several days during the evolution of the region. This region was well observed by both space- and ground-based observatories, including Hinode, FIRS, TRACE, and SOHO. These observations, which span wavelength and atmospheric regimes, provide a complete picture of this unusual feature which may constitute a force-free magnetic field in the photosphere which is produced by the reconnection of magnetic loops low in the solar atmosphere.

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Sarah A. Jaeggli. 2015-04-06. The Persistence of Apparent Non-Magnetostatic Equilibrium in NOAA 11035. https://arxiv.org/abs/1504.01325

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