标题： 阿塔卡马宇宙学望远镜：单观测地图的系统瞬变搜索 显示英文标题

标题： The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps

摘要： 我们利用阿塔卡马宇宙学望远镜（ACT）的数据系统地搜索天体暂现源。这些数据采集于2017年至2022年，涵盖从77 GHz到277 GHz的三个频段。 本文介绍了一种用于暂现源检测的管道，该管道使用单次观测图，其中每个像素包含一次积分时间为约四分钟的观测。 我们在27个独特位置检测到34个暂现事件。除了两个以外的所有暂现事件都与银河系中的恒星相关联，并表现出广泛的特性。 我们还检测到了一个与经典新星YZ Ret相关的事件，以及一个与耀发活动星系核一致的事件。 值得注意的是，我们没有检测到来自伽马射线暴的逆激波辐射，这一非检测结果可能与当前模型存在矛盾。 显示英文摘要

摘要： We conduct a systematic search for astrophysical transients using data from the Atacama Cosmology Telescope (ACT). The data were taken from 2017 to 2022 in three frequency bands spanning 77 GHz to 277 GHz. In this paper we present a pipeline for transient detection using single observation maps where each pixel of a map contains one observation with an integration time of approximately four minutes. We detect 34 transient events at 27 unique locations. All but two of the transients are associated with Galactic stars and exhibit a wide range of properties. We also detect an event coincident with the classical nova YZ Ret and one event consistent with a flaring active galactic nucleus. We notably do not detect any reverse shock emission from gamma ray bursts, a non-detection that may be in tension with current models.