开普勒望远镜观测到的行星候选体。VIII. 基于数据发布 25 的具有实测完备性与可靠性的全自动星表
地球与行星天体物理
2018-04-25 v2
摘要
我们展示了基于四年开普勒时间序列测光数据（数据发布 25，Q1-Q17）搜索得到的凌日系外行星开普勒感兴趣天体（KOI）星表。该星表包含 8054 个 KOI，其中 4034 个为周期在 0.25 至 632 天之间的行星候选体。在这些候选体中，有 219 个是新发现的，包括两个多行星系统中的候选体（KOI-82.06 和 KOI-2926.05），以及十个高可靠性的类地尺寸宜居带候选体。该星表是使用名为 Robovetter 的工具自动筛选 DR25 阈值穿越事件（TCEs, Twicken et al. 2016）生成的。Robovetter 还对模拟数据集进行了筛选，并测量了其区分由噪声引起的 TCEs 与由低信噪比凌日引起的 TCEs 的能力。我们讨论了 Robovetter 及其用于排序 TCEs 的指标。对于轨道周期小于 100 天的情况，Robovetter 在所有观测恒星上的完备性（被确定为行星候选体的模拟凌日比例）大于 85%。对于相同的周期范围，星表的可靠性（非由仪器或恒星噪声引起的候选体比例）大于 98%。然而，对于 FGK 型矮星周围周期在 200 至 500 天之间的低信噪比候选体，Robovetter 的完备性为 76.7%，星表的可靠性为 50.5%。KOI 星表、凌日拟合以及用于表征该星表的所有模拟数据均可在 NASA 系外行星档案库中获取。
引用
@article{arxiv.1710.06758,
title = {Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25},
author = {Susan E. Thompson and Jeffrey L. Coughlin and Kelsey Hoffman and Fergal Mullally and Jessie L. Christiansen and Christopher J. Burke and Steve Bryson and Natalie Batalha and Michael R. Haas and Joseph Catanzarite and Jason F. Rowe and Geert Barentsen and Douglas A. Caldwell and Bruce D. Clarke and Jon M. Jenkins and Jie Li and David W. Latham and Jack J. Lissauer and Savita Mathur and Robert L. Morris and Shawn E. Seader and Jeffrey C. Smith and Todd C. Klaus and Joseph D. Twicken and Bill Wohler and Rachel Akeson and David R. Ciardi and William D. Cochran and Thomas Barclay and Jennifer R. Campbell and William J. Chaplin and David Charbonneau and Christopher E. Henze and Steve B. Howell and Daniel Huber and Andrej Prsa and Solange V. Ramirez and Timothy D. Morton and Jorgen Christensen-Dalsgaard and Jessie L. Dotson and Laurance Doyle and Edward W. Dunham and Andrea K. Dupree and Eric B. Ford and John C. Geary and Forrest R. Girouard and Howard Isaacson and Hans Kjeldsen and Jason H. Steffen and Elisa V. Quintana and Darin Ragozzine and Megan Shabram and Avi Shporer and Victor Silva Aguirre and Martin Still and Peter Tenenbaum and William F. Welsh and Angie Wolfgang and Khadeejah A. Zamudio and David G. Koch and William J. Borucki},
journal= {arXiv preprint arXiv:1710.06758},
year = {2018}
}
备注
61 pages, 23 Figures, 9 Tables, Accepted to The Astrophysical Journal Supplement Series