Speaker
Description
We present our first result on the reconstruction of vector magnetic fields in the emerging flux region labeled 02_EMEF from vector polarimetric data acquired by TuMag/Sunrise III on July 10, 2024 from 19:14 to 21:47 UT. The full dataset is composed of a time series of 97 sets of vector polarimetric spectral images taken across the Fe I 5250.2 A (a photospheric line) and Mg I b2 5172.7 A (a low chromospheric line) spectral lines. The images cover a region of ~ 60 x 60 arcseconds at with pixel size of 0.037 arcsec. The time series covers a span of 2.5 hours with a mean cadence of 83 seconds between vector polarimetric sets.
We apply the Weak Field Approximation (WFA) to both the photospheric and chromospheric Stokes data to extract the full magnetic vector, and qualitatively compare the magnetic topology between photosphere and low chromosphere. We discuss limitations, successes and challenges in obtaining the reconstruction using the WFA. We also provide initial results in analyzing the time evolution of the photospheric and chromospheric magnetic fields in this emerging flux region across the entire observation time span.