Thinkshop12

Active Region Filaments and Magnetic Neutral Lines – Early Science Observations with the GREGOR Solar Telescope Coordinated with VTT, Hinode, and IRIS

Meetu Verma (Leibniz-Institut für Astrophysik Potsdam (AIP))

Abstract. Improved measurements of the photospheric and chromospheric three-dimensional magnetic and flow fields are crucial for a precise determination of the origin and evolution of active-region filaments. Combining photospheric and chromospheric vector magnetograms will answer the questions how active-region filaments are formed and how they eventually evolve towards a coronal mass ejection (CME). We will report on a ten-day ‘early science’ observing campaign with the GREGOR solar telescope combining simultaneous observations from the GREGOR Fabry-Pérot Interferometer (GFPI), the Blue Imaging Channel (BIC), and the Grating Infrared Spectrograph (GRIS) instruments in August 2015. This coordinated campaign also utilizes echelle spectra and images of the Vacuum Tower Telescope (VTT), spectropolarimetric data and images of the Japanese Hinode mission, and UV spectra and images of the Interface Region Imaging Spectrograph (IRIS).

Contributed Talk