TOI-1859b：一颗位于偏心且未对齐轨道上的 64 天温木星
地球与行星天体物理
2023-08-02 v1
摘要
温木星是间距相对较大的密近巨行星（即 ）。鉴于其与宿主恒星的潮汐相互作用较弱，恒星倾角测量可用于探测密近气态巨行星的初始倾角分布与动力学历史。利用光谱观测，我们确认了 TOI-1859b 的行星性质，并借助 Rossiter-McLaughlin 效应测定 TOI-1859 相对于其行星伴星的恒星倾角为 。TOI-1859b 是一颗绕晚 F 型矮星运行的 64 天温木星，其轨道偏心率为 ，该值仅由凌星光变曲线推断得出。TOI-1859b 的偏心且未对齐轨道很可能是行星-行星散射与行星-盘共振穿越等动力学相互作用的结果。
引用
@article{arxiv.2305.16495,
title = {TOI-1859b: A 64-Day Warm Jupiter on an Eccentric and Misaligned Orbit},
author = {Jiayin Dong and Songhu Wang and Malena Rice and George Zhou and Chelsea X. Huang and Rebekah I. Dawson and Gudmundur K. Stefánsson and Samuel Halverson and Shubham Kanodia and Suvrath Mahadevan and Michael W. McElwain and Jaime A. Alvarado-Montes and Joe P. Ninan and Paul Robertson and Arpita Roy and Christian Schwab and Sarah E. Logsdon and Ryan C. Terrien and Karen A. Collins and Gregor Srdoc and Ramotholo Sefako and Didier Laloum and David W. Latham and Allyson Bieryla and Paul A. Dalba and Diana Dragomir and Steven Villanueva and Steve B. Howell and George R. Ricker and S. Seager and Joshua N. Winn and Jon M. Jenkins and Avi Shporer and David Rapetti},
journal= {arXiv preprint arXiv:2305.16495},
year = {2023}
}
备注
15 pages, 7 figures, 1 table; accepted to ApJL