LCRS loose groups of galaxies

A "friends-of-friends" percolation algorithm has been used to extract a catalog of {delta}n/n=80 density enhancements (groups) from the six slices of the Las Campanas Redshift...

本研究采用朋友-朋友（friends-of-friends）渗流算法，从拉斯坎帕纳斯红移（Las Campanas Redshift）的六个天区切片中，提取得到Δn/n=80的密度增强区（星系群）目录。