Discovery of Extra-Planar HI Clouds and a HI Tail in the M101 Galaxy Group with FAST

Jin-Long Xu, Chuan-Peng Zhang, Naiping Yu +7

We present a new high-sensitivity HI observation toward nearby spiral galaxy M101 and its adjacent 2${}^{\circ }\times$ 2${}^{\circ }$ region using the Five-hundred-meter Aperture Spheri…