Chandra X-ray Observatory Stack acisfJ1013337p281135_001

CSC uses combined (i.e. overlapping) Chandra observations for detecting X-ray sources. This allows the catalog to include significantly fainter sources than CSC 1.1. The set of overlapping observations that have been combined in this way is known as a "stack".CSC 采用经合并（即存在观测重叠）的钱德拉X射线天文台（Chandra）观测数据开展X射线源探测工作。这使得该源目录能够收录比CSC 1.1版本显著更暗弱的源。以该方式合并的重叠观测集合被称为"堆叠（stack）"。