Chandra X-ray Observatory Stack acisfJ2345232m640400_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采用联合（即重叠）的钱德拉（Chandra）观测数据开展X射线源（X-ray sources）探测工作。这使得该X射线源星表可收录的源暗弱程度远高于CSC 1.1版本所能收录的源。通过此种方式组合得到的重叠观测数据集，被称为“堆叠（stack）”。