We present the results from the first two years of the Planet Hunters TESS citizen science project, which identifies planet candidates in the TESS data by engaging members of the general public. Over 22,000 citizen scientists from around the world visually inspected the first 26 Sectors of TESS data in order to help identify transit-like signals. We use a clustering algorithm to combine these classifications into a ranked list of events for each sector, the top 500 of which are then visually vetted by the science team. We assess the detection efficiency of this methodology by comparing our results to the list of TESS Objects of Interest (TOIs) and show that we recover 85 % of the TOIs with radii greater than 4 Earth radii and 51 % of those with radii between 3 and 4 Earth radii. Additionally, we present our 90 most promising planet candidates that had not previously been identified by other teams, 73 of which exhibit only a single transit event in the TESS light curve, and outline our efforts to follow these candidates up using ground-based observatories. Finally, we present noteworthy stellar systems that were identified through the Planet Hunters TESS project.

中文翻译：

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行星猎人 TESS II：TESS 前两年的发现

我们展示了 Planet Hunters TESS 公民科学项目前两年的结果，该项目通过让公众参与来确定 TESS 数据中的行星候选者。来自世界各地的 22,000 多名公民科学家对 TESS 数据的前 26 个扇区进行了目视检查，以帮助识别类似过境的信号。我们使用聚类算法将这些分类组合成每个部门的事件排名列表，然后科学团队对其中的前 500 名进行视觉审查。我们通过将我们的结果与 TESS 感兴趣对象 (TOI) 列表进行比较来评估该方法的检测效率，并表明我们恢复了 85% 半径大于 4 个地球半径的 TOI 和 51% 半径介于 3 和4 地球半径。此外，我们展示了 90 个最有希望的行星候选者，这些候选者以前没有被其他团队发现，其中 73 个在 TESS 光变曲线中仅表现出一次凌日事件，并概述了我们使用地面天文台跟踪这些候选者的努力。最后，我们展示了通过行星猎人 TESS 项目确定的值得注意的恒星系统。