A comprehensive view of Virgo stellar stream

To explore the complex halo substructure that has been reported in the direction of the Virgo constellation, radial velocities and metallicities have been measured for 82 RR...为探究室女座方向已被报道的复杂星系晕亚结构，研究人员已对82颗RR……测得其视向速度与金属丰度。