Clusters of galaxies position angles

The position angles of a large number of Abell and Shectman clusters, identified in the Lick map as surface galaxy-density enhancements, are estimated. I determine the major...本研究对大量通过里克星图（Lick map）识别为星系面密度增强区域的阿贝尔（Abell）星系团与谢克特曼（Shectman）星系团的位置角进行了估算。本研究确定了其主...