231 AGN candidates from the 2FGL catalog

The second Fermi-LAT source catalog (2FGL) is the deepest all-sky survey available in the gamma-ray band. It contains 1873 sources, of which 576 remain unassociated....费米大视场望远镜（Fermi-LAT）第二版源星表（2FGL）是伽马射线波段目前已发布的最深场全天巡天项目。该星表共收录1873个伽马射线源，其中576个尚未找到对应关联天体。