Survey of Quiescent Filament Channels at the Current Solar Minimum

Yingna Su et al. Poster #8

Black Contours: H-alpha filament

Black Contours: H-alpha filament

The emission on the two sides of the Type I filament channels is asymmetric in both X-rays and EUV. The eastern side has curved bright features (black arrows), while the western side (white arrows) has straight faint features.

Flare Energy Build-Up in a Decaying Active Region Near a Coronal Hole

Yingna Su et al. Poster #11

Null point topology in the NLFFF model prior to the flare.

NLFFF modeling shows increase of axial flux prior to the flare.