Development of automated survey and real-time alert system for transient astronomical objects

我们研制了瞬变天体（恒星耀斑、新星、矮新星等）自动观测系统。使用CCD照相机和远摄透镜。该系统每晚可覆盖约100度x120度的勘测区域。对于V星等在5到11之间的恒星，我们实现了<5%的测光精度。我们还利用开普勒空间望远镜的观测数据研究了恒星耀斑的发生频率分布。根据Kepler观测数据，我们观测系统每年可探测到的耀斑数约为1个，这与观测到的耀斑数是一致的。

We developed automated survey system for transient objects (stellar flares, novae, dwarf novae etc.) using a CCD camera and telephoto lens. This system can cover a survey area of about 100 degrees x 120 degrees per night. We achieve a photometric precision of <5% for stars with a V magnitude of between 5 and 11. We also studied the occurrence frequency distribution of stellar flares using the data obtained by the Kepler space telescope. On the basis of the Kepler data, the number of detectable stellar flares in ayear with our survey system is about 1, which is consistent with the detected number of stellar flares.