Chandra X-ray Observatory Stack acisfJ0846181p470943_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".钱德拉源目录（CSC）采用组合（即重叠）的钱德拉（Chandra）望远镜观测数据开展X射线源（X-ray sources）探测工作。该目录借此可收录相较于CSC 1.1版本显著更暗的X射线源。以该方式组合的重叠观测数据集被称为“堆叠（stack）”。