论文标题
盖亚（Gaia）奖品微卷事件的预测是有缺陷的
Predictions of Gaia's prize microlensing events are flawed
论文作者
论文摘要
第二个GAIA数据释放的精确天文学使天文学家可以预测5,787个微透析事件，其中528个在扩展的Gaia任务内具有最大值（J2014.5-J2026.5）。在某些情况下，对这些事件的GAIA时间序列序列测量结果的未来分析将导致镜头的精确重力测量值。我们发现，在扩展的Gaia任务中预测的事件中有61％的事件与g = 18的源更明亮可能是虚假的，在这些情况下，背景源通常是重复检测或镜头的二元伴侣。我们提出质量削减，以确定这些虚假的事件和修订的微透镜活动候选者列表。我们的发现表明，在Gaia任务期间，一半可预测的天文降压事件尚未确定。
Precision astrometry from the second Gaia data release has allowed astronomers to predict 5,787 microlensing events, with 528 of these having maximums within the extended Gaia mission (J2014.5 - J2026.5). Future analysis of the Gaia time-series astrometry of these events will, in some cases, lead to precise gravitational mass measurements of the lens. We find that 61% of events predicted during the extended Gaia mission with sources brighter than G = 18 are likely to be spurious, with the background source in these cases commonly being either a duplicate detection or a binary companion of the lens. We present quality cuts to identify these spurious events and a revised list of microlensing event candidates. Our findings imply that half of the predictable astrometric microlensing events during the Gaia mission have yet to be identified.
