Planet Hunters TESS II: findings from the first two years of TESS
Planet Hunters TESS II: findings from the first two years of TESS
复制标题
DOI：
10.1093/mnras/staa3739
复制
发表时间：
2020-11
影响因子：
4.8
通讯作者：
N. Eisner;O. Barrag'an;C. Lintott;S. Aigrain;B. Nicholson;T. Boyajian;Steve B. Howell;Cole Johnston-C
中科院分区：
文献类型：
--
作者：
N. Eisner;O. Barrag'an;C. Lintott;S. Aigrain;B. Nicholson;T. Boyajian;Steve B. Howell;Cole Johnston-C
我们展示了行星猎人TESS （PHT）公民科学项目前两年的结果，该项目通过吸引公众成员来识别TESS（凌日系外行星测量卫星）数据中的候选行星。来自世界各地的22000多名公民科学家目视检查了TESS数据的前26个部分，以帮助识别类似凌日的信号。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，然后由科学团队进行视觉审查。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这种方法的检测效率，并表明我们恢复了85%的半径大于4 R⊕的toi和51%的半径在3到4 R⊕之间的toi。此外，我们还提出了90个以前没有被其他团队发现的最有希望的候选行星，其中73个在TESS光曲线上只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行星的努力。最后，我们介绍了通过行星猎人TESS项目确定的值得注意的恒星系统。
We present the results from the first two years of the Planet Hunters TESS (PHT) citizen science project, which identifies planet candidates in the TESS (Transiting Exoplanet Survey Satellite) 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 per cent of the TOIs with radii greater than 4 R⊕ and 51 per cent of those with radii between 3 and 4 R⊕. 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.