KELT 后续观测网络与凌星假阳性星表：为 TESS 预先筛选的假阳性
地球与行星天体物理
2018-11-07 v2
摘要
Kilodegree Extremely Little Telescope（KELT）项目开展测光巡天以搜寻绕亮星运行的凌星行星已超过十年。KELT 图像的像素尺度约为 23"/像素——与 NASA 的凌系外行星巡天卫星（TESS）非常相似——并且具有较大的点扩散函数，KELT 数据处理流水线使用半径为 3' 的加权测光孔径。在此角尺度下，多个恒星通常在测光孔径中发生混叠。为识别假阳性并确认凌系外行星，我们组建了一个后续观测网络（KELT-FUN），以比 KELT 望远镜更高的空间分辨率、采样率和测光精度对候选宿主恒星进行成像观测以及光谱观测。自 2011 年以来，KELT-FUN 团队已对超过 1600 个行星候选体进行了后续观测，带来了 20 余颗行星的发现。排除约 450 个非天体物理来源的假警报（即仪器噪声或系统误差）后，我们呈现一份全天星表，收录了 1128 颗在 KELT 光变曲线中显示类凌星特征、但经测光和/或光谱后续观测确定为天体物理假阳性（FPs）的亮星（6<V<10）。KELT-FUN 团队持续追踪 KELT 及其他行星候选体，并最终将对特定类型的 TESS 候选体进行后续观测。KELT FP 星表将有助于减少当前及未来凌星巡天（如 TESS）后续观测的重复工作。
引用
@article{arxiv.1803.01869,
title = {The KELT Follow-Up Network and Transit False Positive Catalog: Pre-vetted False Positives for TESS},
author = {Karen A. Collins and Kevin I. Collins and Joshua Pepper and Jonathan Labadie-Bartz and Keivan Stassun and B. Scott Gaudi and Daniel Bayliss and Joao Bento and Knicole D. Colón and Dax Feliz and David James and Marshall C. Johnson and Rudolf B. Kuhn and Michael B. Lund and Matthew T. Penny and Joseph E. Rodriguez and Robert J. Siverd and Daniel J. Stevens and Xinyu Yao and George Zhou and Mundra Akshay and Giulio F. Aldi and Cliff Ashcraft and Supachai Awiphan and Özgür Baştürk and David Baker and Thomas G. Beatty and Paul Benni and Perry Berlind and G. Bruce Berriman and Zach Berta-Thompson and Allyson Bieryla and Valerio Bozza and Sebastiano Calchi Novati and Michael L. Calkins and Jenna M. Cann and David R. Ciardi and Ian R. Clark and William D. Cochran and David H. Cohen and Dennis Conti and Justin R. Crepp and Ivan A. Curtis and Giuseppe D'Ago and Kenny A. Diazeguigure and Courtney D. Dressing and Franky Dubois and Erica Ellingson and Tyler G. Ellis and Gilbert A. Esquerdo and Phil Evans and Alison Friedli and Akihiko Fukui and Benjamin J. Fulton and Erica J. Gonzales and John C. Good and Joao Gregorio and Tolga Gumusayak and Daniel A. Hancock and Caleb K. Harada and Rhodes Hart and Eric G. Hintz and Hannah Jang-Condell and Elizabeth J. Jeffery and Eric L. N. Jensen and Emiliano Jofré and Michael D. Joner and Aman Kar and David H. Kasper and Burak Keten and John F. Kielkopf and Siramas Komonjinda and Cliff Kotnik and David W. Latham and Jacob Leuquire and Tiffany R. Lewis and Ludwig Logie and Simon J. Lowther and Phillip J. MacQueen and Trevor J. Martin and Dimitri Mawet and Kim K. McLeod and Gabriel Murawski and Norio Narita and Jim Nordhausen and Thomas E. Oberst and Caroline Odden and Peter A. Panka and Romina Petrucci and Peter Plavchan and Samuel N. Quinn and Steve Rau and Phillip A. Reed and Howard Relles and Joe P. Renaud and Gaetano Scarpetta and Rebecca L. Sorber and Alex D. Spencer and Michelle Spencer and Denise C. Stephens and Chris Stockdale and Thiam-Guan Tan and Mark Trueblood and Patricia Trueblood and Siegfried Vanaverbeke and Steven Villanueva and Elizabeth M. Warner and Mary Lou West and Selçuk Yalçınkaya and Rex Yeigh and Roberto Zambelli},
journal= {arXiv preprint arXiv:1803.01869},
year = {2018}
}
备注
Accepted for publication in AJ, 21 pages, 12 figures, 7 tables