历史上，微引力透镜事件一直由专门为此目的设计的巡天项目在整个银核和银盘中发现。我们在Zwicky Transient Facility（ZTF）上开展了首次多年期微引力透镜事件搜索；ZTF是一项全天天光巡天，每隔几晚对整个可见北天进行观测。利用ZTF Public Data Release 5中的批量光变曲线，我们在ZTF-I三年数据中发现了60个高质量微引力透镜事件。其中19个事件位于银盘之外（$|b| \geq 15^\circ$），几乎使此前由指向麦哲伦云和仙女座星系的巡天项目在恒星晕中发现的事件数量翻了一番。我们还记录了1,558个正在进行的候选事件，它们是潜在的微引力透镜事件，可继续由ZTF-II观测以进行识别。本工作开发的可扩展且计算高效的方法可应用于未来的巡天项目，例如Vera C. Rubin Observatory的Legacy Survey of Space and Time以及Nancy Grace Roman Space Telescope，用于它们在更大、更深的数据集中寻找微引力透镜事件。
英文摘要：
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.
Zwicky Transient Facility and Globular Clusters: The Period-Luminosity and Period-Wesenheit Relations for Anomalous Cepheids Supplemented with Large Magellanic Cloud Sample
Zwicky Transient Facility and Globular Clusters: the gr-Band Period-Luminosity Relations for Mira Variables at Maximum Light and Their Applications to Local Galaxies
Variability of Central Stars of Planetary Nebulae with the Zwicky Transient Facility. I. Methods, Short-Timescale Variables, Binary Candidates, and the Unusual Nucleus of WeSb 1
Low-Luminosity Type IIP Supernovae from the Zwicky Transient Facility Census of the Local Universe. II: Lightcurve Analysis
California Institute of Technology（加州理工学院）；Stockholm University（斯德哥尔摩大学）；SOKENDAI（日本综合研究大学院大学）；National Astronomical Observatory of Japan（日本国立天文台）；National Institutes of Natural Sciences（国立自然科学研究院）；Monash University（蒙纳士大学）；Liverpool John Moores University（利物浦约翰摩尔斯大学）；University of Washington（华盛顿大学）
Variability of Central Stars of Planetary Nebulae with the Zwicky Transient Facility. II. Long-Timescale Variables including Wide Binary and Late Thermal Pulse Candidates
Identifying Changing-Look AGN Transitions in Light Curve Data with the Zwicky Transient Facility
University of Illinois Urbana-Champaign（伊利诺伊大学厄巴纳-香槟分校）；National Center for Supercomputing Applications（国家超级计算应用中心）；Washington State University（华盛顿州立大学）；Yale University（耶鲁大学）；The Pennsylvania State University（宾夕法尼亚州立大学）
Tidal Disruption Event Demographics with the Zwicky Transient Facility: Volumetric Rates, Luminosity Function, and Implications for the Local Black Hole Mass Function
