一颗凌星暖木星环绕 M 矮星：由宜居带行星搜寻者确认的 TESS 单次凌星事件
地球与行星天体物理
2020-09-07 v2 太阳与恒星天体物理
摘要
我们确认了早期 M 矮星 TOI-1899 的一颗暖木星凌星行星性质，结合了可用的 TESS 测光、使用宜居带行星搜寻者（Habitable-zone Planet Finder）的高精度近红外光谱，以及散斑和自适应光学成像。数据揭示了一颗轨道周期约 天的凌星伴星，其质量和半径分别为 和 。恒星 TOI-1899 是已知宿主凌星暖木星的最低质量恒星，我们讨论了由一颗暖（ K）气态巨行星环绕 M0 恒星所带来的后续观测机会。我们的观测表明 TOI-1899.01 是一颗膨胀的暖木星，我们建议进行额外的凌星观测，以细化轨道并约束 TESS 中观测到的真实稀释。
引用
@article{arxiv.2007.07098,
title = {A warm Jupiter transiting an M dwarf: A TESS single transit event confirmed with the Habitable-zone Planet Finder},
author = {Caleb I. Cañas and Gudmundur Stefansson and Shubham Kanodia and Suvrath Mahadevan and William D. Cochran and Michael Endl and Paul Robertson and Chad F. Bender and Joe P. Ninan and Corey Beard and Jack Lubin and Arvind F. Gupta and Mark E. Everett and Andrew Monson and Robert F. Wilson and Hannah M. Lewis and Mary Brewer and Steven R. Majewski and Leslie Hebb and Rebekah I. Dawson and Scott A. Diddams and Eric B. Ford and Connor Fredrick and Samuel Halverson and Fred Hearty and Andrea S. J. Lin and Andrew J. Metcalf and Jayadev Rajagopal and Lawrence W. Ramsey and Arpita Roy and Christian Schwab and Ryan C. Terrien and Jason T. Wright},
journal= {arXiv preprint arXiv:2007.07098},
year = {2020}
}
备注
24 pages, 5 figures, 3 tables, published in AJ