Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b
Article
Psaridi, Angelica, Bouchy, Francois, Lendl, Monika, Akinsanmi, Babatunde, Stassun, Keivan G., Smalley, Barry, Armstrong, David J., Howard, Saburo, Ulmer-Moll, Solene, Grieves, Nolan, Barkaoui, Khalid, Rodriguez, Joseph E., Bryant, Edward M., Suarez, Olga, Guillot, Tristan, Evans, Phil, Attia, Omar, Wittenmyer, Robert A., Yee, Samuel W., ..., Zapata, Abner. 2023. "Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b." Astronomy and Astrophysics: a European journal. 675. https://doi.org/10.1051/0004-6361/202346406
Article Title | Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b |
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ERA Journal ID | 1050 |
Article Category | Article |
Authors | Psaridi, Angelica, Bouchy, Francois, Lendl, Monika, Akinsanmi, Babatunde, Stassun, Keivan G., Smalley, Barry, Armstrong, David J., Howard, Saburo, Ulmer-Moll, Solene, Grieves, Nolan, Barkaoui, Khalid, Rodriguez, Joseph E., Bryant, Edward M., Suarez, Olga, Guillot, Tristan, Evans, Phil, Attia, Omar, Wittenmyer, Robert A., Yee, Samuel W., Collins, Karen A., Zhou, George, Galland, Franck, Parc, Lena, Udry, Stephane, Figueira, Pedro, Ziegler, Carl, Mordasini, Christoph, Winn, Joshua N., Seager, Sara, Jenkins, Jon M., Twicken, Joseph D., Brahm, Raphael, Jones, Matias I., Abe, Lyu, Addison, Brett, Briceno, Cesar, Briegal, Joshua T., Collins, Kevin I., Daylan, Tansu, Eigmuller, Phillip, Furesz, Gabor, Guerrero, Natalia M., Hagelberg, Janis, Heitzmann, Alexis, Hounsell, Rebekah, Huang, Chelsea X., Krenn, Andreas, Law, Nicholas M., Mann, Andrew W., McCormac, James, Mekarnia, Djamel, Mounzer, Dany, Nielsen, Louise D., Osborn, Ares, Reinarz, Yared, Sefako, Ramotholo R., Steiner, Michal, Strom, Paul A., Triaud, Amaury H. M. J., Vanderspek, Roland, Vanzi, Leonardo, Vines, Jose I., Watson, Christopher A., Wright, Duncan J. and Zapata, Abner |
Journal Title | Astronomy and Astrophysics: a European journal |
Journal Citation | 675 |
Article Number | A39 |
Number of Pages | 15 |
Year | 2023 |
Publisher | EDP Sciences |
Place of Publication | France |
ISSN | 0004-6361 |
1432-0746 | |
Digital Object Identifier (DOI) | https://doi.org/10.1051/0004-6361/202346406 |
Web Address (URL) | https://www.aanda.org/articles/aa/full_html/2023/07/aa46406-23/aa46406-23.html |
Abstract | While the sample of confirmed exoplanets continues to grow, the population of transiting exoplanets around early-type stars is still limited. These planets allow us to investigate the planet properties and formation pathways over a wide range of stellar masses and study the impact of high irradiation on hot Jupiters orbiting such stars. We report the discovery of TOI-615b, TOI-622b, and TOI-2641b, three Saturn-mass planets transiting main sequence, F-type stars. The planets were identified by the Transiting Exoplanet Survey Satellite (TESS) and confirmed with complementary ground-based and radial velocity observations. TOI-615b is a highly irradiated (?1277 F) and bloated Saturn-mass planet (1.69-0.06+0.05 RJup and 0.43-0.08+0.09 MJup) in a 4.66 day orbit transiting a 6850 K star. TOI-622b has a radius of 0.82-0.03+0.03 RJup and a mass of 0.30-0.08+0.07 MJup in a 6.40 day orbit. Despite its high insolation flux (?600 F), TOI-622b does not show any evidence of radius inflation. TOI-2641b is a 0.39-0.04+0.02 MJup planet in a 4.88 day orbit with a grazing transit (b = 1.04-0.06+0.05) that results in a poorly constrained radius of 1.61-0.64+0.46 RJup. Additionally, TOI-615b is considered attractive for atmospheric studies via transmission spectroscopy with ground-based spectrographs and JWST. Future atmospheric and spin-orbit alignment observations are essential since they can provide information on the atmospheric composition, formation, and migration of exoplanets across various stellar types. © 2023 Authors. |
Keywords | Planets and satellites: individual: TOI-2641b; planets and satellites: individual: TOI-622b; stars: early-type; techniques: photometric; techniques: radial velocities; planets and satellites: individual: TOI-2641b |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Byline Affiliations | University of Geneva, Switzerland |
Vanderbilt University, United States | |
Keele University, United Kingdom | |
University of Warwick, United Kingdom | |
Cote d'Azur Observatory, France | |
University of Liege, Belgium | |
Massachusetts Institute of Technology, United States | |
Institute of Astrophysics of the Canary Islands, Spain | |
Michigan State University, United States | |
University College London, United Kingdom | |
Cote d'Azur University, France | |
El Sauce Observatory, Chile | |
Centre for Astrophysics (Operations) | |
Princeton University, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Centre for Astrophysics | |
Grenoble Alpes University, France | |
University of Porto, Portugal | |
Stephen F. Austin State University, United States | |
University of Bern, Switzerland | |
NASA Ames Research Center, United States | |
SETI Institute, United States | |
Adolfo Ibanez University, Chile | |
Millennium Institute for Astrophysics, Chile | |
Data Observatory Foundation, Chile | |
European Southern Observatory (ESO), Chile | |
Centre for Astrophysics (Research) | |
Swinburne University of Technology | |
Cerro Tololo Inter-American Observatory, Chile | |
Cavendish Laboratory, United Kingdom | |
George Mason University, United States | |
German Aerospace Center (DLR), Germany | |
University of Florida, United States | |
University of Maryland, United States | |
NASA Goddard Space Flight Center, United States | |
Austrian Academy of Sciences, Austria | |
University of North Carolina, United States | |
European Southern Observatory (ESO), Germany | |
South African Astronomical Observatory, South Africa | |
University of Birmingham, United Kingdom | |
Pontifical Catholic University of Chile, Chile | |
University of Chile, Chile | |
Queen's University Belfast, United Kingdom |
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