Formation of Transient Coronal Holes during Eruption of a Quiescent Filament and its Overlying Sigmoid

Li-Heng Yang, Yun-Chun Jiang, Dong-bai Ren

By using H$\alpha$, He I 10830, EUV and soft X-ray (SXR) data, we examined a filament eruption that occurred on a quiet-sun region near the center of the solar disk on 2006 January 12,…