Publication in the ASP Conference Proceedings: »Photospheric Magnetic Fields of the Trailing Sunspots in Active Region NOAA 12396«

The solar magnetic field is responsible for all aspects of solar activity. Sunspots are the main manifestation of the ensuing solar activity. Combining high-resolution and synoptic observations has the ambition to provide a comprehensive description of the sunspot growth and decay processes. Active region NOAA 12396 emerged on 2015 August 3 and was observed three days later with the 1.5-meter GREGOR solar telescope on 2015 August 6. High-resolution spectro-polarimetric data from the GREGOR Infrared Spectrograph (GRIS) are obtained in the photospheric Si I λ1082.7 nm and Ca I λ1083.9 nm lines, together with the chromospheric He I λ1083.0 nm triplet. These near-infrared spectro-polarimetric observations were complemented by synoptic line-of-sight magnetograms and continuum images of the Helioseismic and Magnetic Imager (HMI) and EUV images of the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO).

This article is accessible as a preprint in arXiv.

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