AI 中文总结
利用 TESS 数据确认 29 个热/暖木星系统，发现 3 个伴星，并通过统计检验揭示其宿主星性质分布差异，为巨行星迁移研究提供样本。
AI 中文摘要
我们利用 TESS 数据以及地面测光和光谱观测，呈现了 29 个热木星和暖木星系统的发现与表征，这些系统凌星于亮（$G < 12.8$）的 FGK 型恒星。通过高角分辨率成像，我们发现了三个束缚的恒星伴星，命名为 TOI-3988 B、TOI-6171 B 和 TOI-7266 B。我们确认的这些行星的轨道周期范围为 $1.28 - 16.9$ 天，质量范围为 $0.35 - 8.7$ $\mathrm{M}_{\mathrm{J}}$，轨道偏心率范围为 $0 - 0.6$，并补充到利用 TESS 探测、使用马尔可夫链蒙特卡洛代码 EXOFASTv2 分析而不断增长的自洽热木星和暖木星系统样本中。通过对一组宿主恒星和行星参数进行双样本 Kolmogorov-Smirnov 检验，我们发现这一不断增长的自洽巨行星样本，其宿主恒星质量、表面重力和金属丰度的分布，与文献中的热木星和暖木星系统不同，这很可能是因为我们的全局拟合中包含了行星凌星对宿主恒星密度的额外约束。我们发现，29 颗新确认的行星中有 7 颗具有显著的轨道偏心率，其中一颗 TOI-3365 b 所在系统可能拥有一个质量较大的外伴星。热木星和暖木星系统的持续确认，以及对这些系统进行视向速度监测以识别外伴星，将为巨行星迁移的重要研究铺平道路。
英文摘要
We present the discovery and characterization of 29 hot and warm Jupiter systems transiting bright ($G < 12.8$) FGK stars using TESS data and ground-based photometry and spectroscopy. Through the use of high angular resolution imaging, we discovered three bound stellar companions, named TOI-3988 B, TOI-6171 B, and TOI-7266 B. The planets that we confirmed span an orbital period range of $1.28 - 16.9$ days, a mass range of $0.35 - 8.7$ $\mathrm{M}_{\mathrm{J}}$, and an orbital eccentricity range of $0 - 0.6$, and add to the growing self-consistent sample of hot and warm Jupiter systems detected using TESS and analyzed using the Markov-Chain Monte Carlo code EXOFASTv2. By performing two-sample Kolmogorov-Smirnov tests on a set of host star and planetary parameters, we find that this growing self-consistent sample of giant planets has a different distribution of host star masses, surface gravities, and metallicities, compared to the hot Jupiter and warm Jupiter systems in the literature, likely due to the additional constraint on the host star density from the planetary transits included in our global fits. We find that seven of the 29 newly confirmed planets have significant orbital eccentricity, and that one of these, TOI-3365 b, is in a system which likely hosts a massive outer companion. The continued confirmation of hot Jupiter and warm Jupiter systems and the follow-up RV monitoring on these systems to identify outer companions will pave the way for important investigations of giant planet migration.
Comments64 pages, 6 figures, 9 tables, submitted to MNRAS
