BHB candidates in Sagittarius stream

We use a sample of blue horizontal branch (BHB) stars from the Sloan Digital Sky Survey Data Release 7 (Cat. II/294) to explore the structure of the tidal tails from the...我们选取斯隆数字巡天（Sloan Digital Sky Survey, SDSS）第7次数据发布（Cat. II/294）中的蓝水平分支（blue horizontal branch, BHB）星样本，以探究源自……的潮汐尾结构。