Thinkshop12

Dynamics and Evolution of a Giant Solar Filament as Observed by the Solar Dynamics Observatory

Andrea Diercke (Leibniz-Institut für Astrophysik Potsdam (AIP))

Abstract. Giant solar filaments are scarce objects found in the solar atmosphere. We studied such a filament focusing on the dynamical and evolutional aspects. The filament was visible on the Sun from 8 until 22 of November 2011. To analyze the filament, we used data of the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) in the wavelength bands 171 A, 193 A, 211 A, and 304 A. With contrast enhancing techniques it was possible to detect counter-streaming flows along the spine of the filament in all four wavelengths. The magnitude of these flows were then inferred by applying local correlation tracking (LCT) to the 171 A AIA data.

Poster