Published June 30, 2023
| Version v1
Journal article
Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS
Creators
- Psaridi, Angelica
- Bouchy, François
- Lendl, Monika
- Akinsanmi, Babatunde
- Stassun, Keivan
- Smalley, Barry
- Armstrong, David
- Howard, Saburo
- Ulmer-Moll, Solène
- Grieves, Nolan
- Barkaoui, Khalid
- Rodriguez, Joseph
- Bryant, Edward
- Suárez, Olga
- Guillot, Tristan
- Evans, Phil
- Attia, Omar
- Wittenmyer, Robert
- Yee, Samuel
- Collins, Karen
- Zhou, George
- Galland, Franck
- Parc, Léna
- Udry, Stéphane
- Figueira, Pedro
- Ziegler, Carl
- Mordasini, Christoph
- Winn, Joshua
- Seager, Sara
- Jenkins, Jon
- Twicken, Joseph
- Brahm, Rafael
- Jones, Matías
- Abe, Lyu
- Addison, Brett
- Briceño, César
- Briegal, Joshua
- Collins, Kevin
- Daylan, Tansu
- Eigmüller, Phillip
- Furesz, Gabor
- Guerrero, Natalia
- Hagelberg, Janis
- Heitzmann, Alexis
- Hounsell, Rebekah
- Huang, Chelsea
- Krenn, Andreas
- Law, Nicholas
- Mann, Andrew
- Mccormac, James
- Mékarnia, Djamel
- Mounzer, Dany
- Nielsen, Louise
- Osborn, Ares
- Reinarz, Yared
- Sefako, Ramotholo
- Steiner, Michal
- Strøm, Paul
- Triaud, Amaury
- Vanderspek, Roland
- Vanzi, Leonardo
- Vines, Jose
- Watson, Christopher
- Wright, Duncan
- Zapata, Abner
Contributors
Others:
- Observatoire Astronomique de l'Université de Genève (ObsGE) ; Université de Genève = University of Geneva (UNIGE)
- Université de Genève = University of Geneva (UNIGE)
- Vanderbilt University [Nashville]
- European Bioinformatics Institute [Hinxton] (EMBL-EBI) ; EMBL Heidelberg
- Observatoire de la Côte d'Azur (OCA) ; Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Université Cadi Ayyad [Marrakech] (UCA)
- Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
- Joseph Louis LAGRANGE (LAGRANGE) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur ; Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS)
- University of Auckland [Auckland]
- SETI Institute
- Max-Planck-Institut für Polymerforschung (MPI-P) ; Max-Planck-Gesellschaft
- Centre d'Immunologie de Marseille - Luminy (CIML) ; Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
- European Southern Observatory [Santiago] (ESO) ; European Southern Observatory (ESO)
- Dunlap Institute for Astronomy and Astrophysics [Toronto] ; University of Toronto
- Physikalisches Institut [Bern] ; Universität Bern = University of Bern = Université de Berne (UNIBE)
- Peyton Hall
- Massachusetts Institute of Technology (MIT)
- NASA Ames Research Center (ARC)
Description
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 R Jup and 0.43 −0.08 +0.09 M Jup ) in a 4.66 day orbit transiting a 6850 K star. TOI-622b has a radius of 0.82 −0.03 +0.03 R Jup and a mass of 0.30 −0.08 +0.07 M Jup 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 M Jup 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 R Jup . 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.
Abstract
International audienceAdditional details
Identifiers
- URL
- https://cnrs.hal.science/hal-04797754
- URN
- urn:oai:HAL:hal-04797754v1
Origin repository
- Origin repository
- UNICA