Chandra X-ray Observatory Stack acisfJ1714326m292751_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（Chandra Source Catalog，CSC）采用叠加（即重叠）的钱德拉（Chandra）观测数据开展X射线源（X-ray source）探测。这使得该星表能够收录暗度远低于CSC 1.1版本星表收录源的X射线源。以该方式组合的重叠观测数据集被称为“堆叠（stack）”。