论文标题
ZWICKY瞬态设施三年的60个微透镜事件第一阶段
60 Microlensing Events from the Three Years of Zwicky Transient Facility Phase One
论文作者
论文摘要
从历史上看，在整个银河凸起和平面上，仅针对该目的而设计的整个银河凸起和平面发现了微透镜事件。我们在Zwicky瞬态设施（ZTF）上进行了首次多年搜索微透明事件，这是一项全天空的光概要调查，每隔几个晚上都会观察整个可见的北方天空。 We discover 60 high quality microlensing events in the three years of ZTF-I using the bulk lightcurves in the ZTF Public Data Release 5. 19 of our events are found outside of the Galactic plane ($|b| \geq 15^\circ$), nearly doubling the number of previously discovered events in the stellar halo from surveys pointed toward the Magellanic Clouds and the Andromeda Galaxy.我们还将1,558个正在进行的候选事件记录为潜在的微晶膜，可以继续被ZTF-II观察到以识别。这项工作中开发的可扩展性和计算有效的方法可以应用于将来的概要调查，例如Vera C. Rubin观测站对时空的遗产调查以及Nancy Grace Roman Space望远镜，因为他们试图在更大且更深的数据集中找到微验证事件。
Microlensing events have historically been discovered throughout the Galactic bulge and plane by surveys designed solely for that purpose. We conduct the first multi-year search for microlensing events on the Zwicky Transient Facility (ZTF), an all-sky optical synoptic survey that observes the entire visible Northern sky every few nights. We discover 60 high quality microlensing events in the three years of ZTF-I using the bulk lightcurves in the ZTF Public Data Release 5. 19 of our events are found outside of the Galactic plane ($|b| \geq 15^\circ$), nearly doubling the number of previously discovered events in the stellar halo from surveys pointed toward the Magellanic Clouds and the Andromeda Galaxy. We also record 1,558 ongoing candidate events as potential microlensing that can continue to be observed by ZTF-II for identification. The scalable and computationally efficient methods developed in this work can be applied to future synoptic surveys, such as the Vera C. Rubin Observatory's Legacy Survey of Space and Time and the Nancy Grace Roman Space Telescope, as they attempt to find microlensing events in even larger and deeper datasets.
