Monday 10
Session I-1.1 Prominence:fine structure, dynamics and seismology
Chairman: Jongchul Chae
› 17:30 - 17:45 (15min)
Formation and evolution of an active region filament
Christoph Kuckein  1, *, @  , Valentin Martinez Pillet  2, @  , Rebeca Centeno  3, @  , Lotfi Yelles  2, @  , Fernando Moreno-Insertis  2, @  
1 : Leibniz Institute for Astrophysics Potsdam  (AIP)  -  Website
An der Sternwarte 16 14482 Potsdam -  Germany
2 : Instituto de Astrofisica de Canarias  (IAC)  -  Website
C/ Via Lactea, s/n 38200 La Laguna -  Spain
3 : High Altitude Observatory  (HAO)  -  Website
3080 Center Green Dr., Boulder, CO 80301 -  United States
* : Corresponding author

Several scenarios explaining how filaments are formed can be found in the literature. In our study, we studied an active region filament and critically evaluated the observed properties in the context of current filament formation models. This study is based on multi-height spectropolarimetric observations. The inferred vector magnetic field has been extrapolated starting from the photosphere and the chromosphere. The line-of-sight motions of the filament, which was located near disk center, have been analyzed inferring the Doppler velocities. We conclude that part of the magnetic structure emerges from below the photosphere.

Subject : : oral
Topics : Session I-1.1 Prominence:fine structure, dynamics and seismology
Keywords : filament ; prominence ; active region ; photosphere ; chromosphere ; neutral line ; magnetic field ; polarimetry
PDF version :  PDF version
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