RR Lyrae as tracers in the Virgo overdensity region

We use a combination of spatial distribution and radial velocity to search for halo substructures in a sample of 412 RR Lyrae stars (RRLSs) that covers a region of ~525 square...

我们结合空间分布与视向速度两种方法，在覆盖约525平方（原文未完整给出）的412颗天琴座RR型变星（RR Lyrae Stars, RRLSs）样本中搜寻晕亚结构。