SOLARNET Conference: The Many Scales of the Magnetic Sun

Scrutinising nature of magnetic and flow fields in complex active region with HiFI+ and GRIS

9 May 2023, 11:45

15m

Haus H, Telegrafenberg

Oral presentation 2) Small and large-scale magnetic features – from bright points to sunspots (Observations and Theory) Small and large-scale magnetic features – from bright points to sunspots (Observations and Theory)

Speaker

Mr Robert Kamlah (Leibniz-Institut fuer Astrophysik Potsdam (AIP))

Description

This study investigates the photospheric and chromospheric flow field in active region NOAA 13096, which consists of pores, sunspots with partial penumbrae, and light bridges. The improved High-resolution Fast Imager (HiFI+) and GREGOR Infrared Spectrograph (GRIS) acquired high-resolution data at the 1.5-meter GREGOR solar telescope at Observatorio del Teide, Izaña, Tenerife, Spain. The Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO) complements the GREGOR data with synoptic full-disk continuum images and line-of-sight (LOS) magnetograms. Background-Subtracted Activity Maps (BaSAMs) were used to locate areas with enhanced activity, for which Local Correlation Tracking (LCT) provides horizontal proper motions and GRIS LOS velocities and full-Stokes polarimetry. We present first results of the three-dimensional photospheric and chromospheric flow and magnetic fields scrutinizing the (inverse) Evershed effect in a complex active region.