arXiv · 2501.04383
Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES
Abstract
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 2.1m 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.
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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. Munoz, 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. 2025-01-08. Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES. https://doi.org/10.1051/0004-6361%2F202451404
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