Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES,Astronomy & Astrophysics

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Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES
Astronomy & Astrophysics ( IF 5.4 ) Pub Date : 2024-12-13 , DOI: 10.1051/0004-6361/202451404
Juliana Ehrhardt, Luis Thomas, Hanna Kellermann, Christine Freitag, Frank Grupp, Samuel W. Yee, Joshua N. Winn, Joel D. Hartman, Karen A. Collins, Cristilyn N. Watkins, Keivan G. Stassun, Paul Benni, Allyson Bieryla, Kylee Carden, Jacek Checinski, Dmitry V. Cheryasov, Brendan Diamond, Nicholas Dowling, Courtney D. Dressing, Emma Esparza-Borges, Phil Evans, Raquel Forés-Toribio, Akihiko Fukui, Steven Giacalone, Eric Girardin, Robert F. Goeke, Claus Goessl, Yuya Hayashi, Ulrich Hopp, Jon M. Jenkins, Isa Khan, Didier Laloum, Adam Lark, David W. Latham, Jerome de Leon, Alessandro Marchini, Bob Massey, Jose A. Muñoz, Felipe Murgas, Norio Narita, Enric Palle, Riccardo Papini, Hannu Parviainen, Jan-Niklas Pippert, Adam Popowicz, Tyler Pritchard, Samuel N. Quinn, Manfred Raetz, Christoph Ries, Arno Riffeser, Arjun B. Savel, Sara Seager, Michael Schmidt, Stephanie Striegel, Gregor Srdoc, Chris Stockdale, Gaia Verna, David Watanabe, Carl Ziegler, Raphael Zöller

We report the confirmation and characterization of four hot Jupiter-type exoplanets initially detected by TESS: TOI-1295 b, TOI-2580 b, TOI-6016 b, and TOI-6130 b. Using observations with the high-resolution echelle spectrograph MaHPS on the 2.1 m telescope at Wendelstein Observatory, together with NEID at Kitt Peak National Observatory and TRES at the Fred Lawrence Whipple Observatory, we confirmed the planetary nature of these four planet candidates. We also performed precise mass measurements. All four planets are found to be hot Jupiters with orbital periods between 2.4 and 4.0 days. The sizes of these planets range from 1.29 to 1.64 Jupiter radii, while their masses range from 0.6 to 1.5 Jupiter masses. Additionally, we investigated whether there are signs of other planets in the systems but have found none. Lastly, we compared the radii of our four objects to the results of an empirical study of radius inflation and see that all four demonstrate a good fit with the current models. These four planets belong to the first array of planets confirmed with MaHPS data, supporting the ability of the spectrograph to detect planets around fainter stars as faint as V = 12.

中文翻译：

使用 Wendelstein 的 MaHPS 的后续光谱以及 NEID 和 TRES 确认 TESS 检测到的四个热木星

我们报告了 TESS 最初探测到的四颗热木星型系外行星的确认和表征：TOI-1295 b、TOI-2580 b、TOI-6016 b 和 TOI-6130 b。利用温德尔斯坦天文台 2.1 m 望远镜上的高分辨率中阶梯光栅光谱仪 MaHPS 的观测，以及基特峰国家天文台的 NEID 和弗雷德劳伦斯惠普尔天文台的 TRES，我们证实了这四颗候选行星的行星性质。我们还进行了精确的质量测量。所有四颗行星都被发现是热木星，轨道周期在 2.4 到 4.0 天之间。这些行星的大小从 1.29 到 1.64 木星半径不等，而它们的质量从 0.6 到 1.5 木星质量不等。此外，我们还调查了系统中是否有其他行星的迹象，但没有发现。最后，我们将四个物体的半径与半径膨胀的实证研究结果进行了比较，发现这四个物体都与当前的模型拟合良好。这四颗行星属于 MaHPS 数据确认的第一个行星阵列，支持光谱仪探测到暗至 V = 12 的较暗恒星周围的行星的能力。