Discovery of Tidal Tails in Disrupting Open Clusters: Coma Berenices and a Neighbor Stellar Group

Shih-Yun Tang, Xiaoying Pang, Zhen Yuan +6

We report the discovery of tidal structures around the intermediate-aged ($\sim$ 700--800~Myr), nearby ($\sim 85$~pc) star cluster Coma Berenices. The spatial and kinematic grouping…