ROSAT All-Sky Survey Two Selected Fields X-Ray Source Catalog

The optical identification of large number of X-ray sources such as those from the ROSAT All-Sky Survey is challenging with conventional spectroscopic follow-up observations....对ROSAT全天空巡天（ROSAT All-Sky Survey）所探测到的大量X射线源（X-ray sources）开展光学证认工作，采用常规光谱学后续观测手段往往极具挑战性。