Chandra X-ray Observatory Stack acisfJ0835535m505817_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采用合并（即重叠）的钱德拉（Chandra）观测数据来探测X射线源。此举使得该目录可收录比CSC 1.1暗得多的天体源。通过此种方式合并的重叠观测数据集被称为“堆叠（stack）”。