Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS. TOI-615b, TOI-622b, and TOI-2641b
| dc.contributor.author | Psaridi, Angelica | |
| dc.contributor.author | Bouchy, François | |
| dc.contributor.author | Lendl, Monika | |
| dc.contributor.author | Akinsanmi, Babatunde | |
| dc.contributor.author | Hounsell, Rebekah | |
| dc.contributor.author | et al. | |
| dc.date.accessioned | 2023-06-08T15:02:39Z | |
| dc.date.available | 2023-06-08T15:02:39Z | |
| dc.date.issued | 2023-05-11 | |
| dc.description | Authors: - Angelica Psaridi , François Bouchy , Monika Lendl , Babatunde Akinsanmi , Keivan G. Stassun , Barry Smalley , David J. Armstrong , Saburo Howard , Solène Ulmer-Moll , Nolan Grieves , Khalid Barkaoui , Joseph E. Rodriguez , Edward M. Bryant , Olga Suárez , Tristan Guillot , Phil Evans , Omar Attia , Robert A. Wittenmyer , Samuel W. Yee , Karen A. Collins , George Zhou , Franck Galland,, Léna Parc , Stéphane Udry , Pedro Figueira , Carl Ziegler, Christoph Mordasini , Joshua N. Winn , Sara Seager , Jon M. Jenkins , Joseph D. Twicken , Rafael Brahm , Matías I. Jones, Lyu Abe, Brett Addison, César Briceño , Joshua T. Briegal , Kevin I. Collins , Tansu Daylan , Phillip Eigmüller , Gabor Furesz , Natalia M. Guerrero , Janis Hagelberg , Alexis Heitzmann , Rebekah Hounsell,, Chelsea X. Huang , Andreas Krenn , Nicholas M. Law , Andrew W. Mann , James McCormac, Djamel Mékarnia , Dany Mounzer , Louise D. Nielsen , Ares Osborn , Yared Reinarz , Ramotholo R. Sefako , Michal Steiner , Paul A. Strøm , Amaury H.M.J. Triaud , Roland Vanderspek , Leonardo Vanzi, Jose I. Vines , Christopher A. Watson , Duncan J. Wright , Abner Zapata | en_US |
| dc.description.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⁺⁰.⁰⁵−₀.₀₆ Rⱼᵤₚ and 0.43⁺⁰.⁰⁹−₀.₀₈ 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⁺⁰.⁰⁷−₀.₀₈ 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⁺⁰.⁰²−₀.₀₄ Mⱼᵤₚ planet in a 4.88 day orbit with a grazing transit (b = 1.04⁺⁰.⁰⁵−₀.₀₆) that results in a poorly constrained radius of 1.61⁺⁰.⁴⁶−₀.₆₄ 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. | en_US |
| dc.description.sponsorship | We thank the Swiss National Science Foundation (SNSF) and the Geneva University for their continuous support to our planet low-mass companion search programs. This work was carried out within the framework of the Swiss National Centre for Competence in Research (NCCR) PlanetS supported by the Swiss National Science Foundation (SNSF) under grants 51NF40_182901 and 51NF40_205606. ML and BA acknowledge support of the Swiss National Science Foundation under grant number PCEFP2_194576. This publication makes use of The Data & Analysis Center for Exoplanets (DACE), which is a facility based at the University of Geneva (CH) dedicated to extrasolar planet data visualization, exchange, and analysis. DACE is a platform of NCCR PlanetS and is available at https://dace.unige.ch. This paper includes data collected by the TESS mission. Funding for the TESS mission is provided by the NASA Explorer Program. This research has made use of the Exoplanet Followup Observation Program (ExoFOP; DOI: 10.26134/ExoFOP5) website, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Funding for the TESS mission is provided by NASA’s Science Mission Directorate. KAC acknowledges support from the TESS mission via subaward s3449 from MIT. We acknowledge the use of public TESS data from pipelines at the TESS Science Office and at the TESS Science Processing Operations Center. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Super computing (NAS) Division at Ames Research Center for the production of the SPOC data products. The material is based upon work supported by NASA under award number 80GSFC21M0002. Based in part on observations obtained at Cerro Tololo Inter-American Observatory at NSF’s NOIRLab (NOIRLab Prop. ID 2022A932354; PI: C. Ziegler), which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation, and observations obtained at the Southern Astrophysical Research (SOAR) telescope, which is a joint project of the Ministério da Ciência, Tecnologia e Inovações (MCTI/LNA) do Brasil, the US National Science Foundation’s NOIRLab, the University of North Carolina at Chapel Hill (UNC), and Michigan State University (MSU). JSJ acknowledges support by FONDECYT grant 1201371 and partial support from the ANID Basal project FB210003. This research received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement n◦ 803193/BEBOP), and from the Science and Technology Facilities Council (STFC; grant n◦ ST/S00193X/1). DJA is supported by UK Research & Innovation (UKRI) through the STFC (ST/R00384X/1) and EPSRC (EP/X027562/1). MINERVA-Australis is supported by Australian Research Council LIEF Grant LE160100001, Discovery Grants DP180100972 and DP220100365, Mount Cuba Astronomical Foundation, and institutional partners University of Southern Queensland, UNSW Sydney, MIT, Nanjing University, George Mason University, University of Louisville, University of California Riverside, University of Florida, and The University of Texas at Austin. We respectfully acknowledge the traditional custodians of all lands throughout Australia, and recognize their continued cultural and spiritual connection to the land, waterways, cosmos, and community. We pay our deepest respects to all Elders, ancestors and descendants of the Giabal, Jarowair, and Kambuwal nations, upon whose lands the Minerva-Australis facility at Mt Kent is situated. The postdoctoral fellowship of KB is funded by F.R.S.-FNRS grant T.0109.20 and by the Francqui Foundation. This research has used data from the CTIO/SMARTS 1.5m telescope, which is operated as part of the SMARTS Consortium by RECONS (www.recons.org) members Todd Henry, Hodari James, Wei-Chun Jao, and Leonardo Paredes. At the telescope, observations were carried out by Roberto Aviles and Rodrigo Hinojosa. The CHIRON data were obtained from telescope time allocated under the NN-EXPLORE program with support from the National Aeronautics and Space Administration (Prop. IDs 2021B-0162, 2022A-543544, PI: Yee). This work makes use of observations from the LCOGT network. Part of the LCOGT telescope time was granted by NOIRLab through the Mid-Scale Innovations Program (MSIP). MSIP is funded by NSF. This work makes use of observations from the ASTEP telescope. ASTEP benefited from the support of the French and Italian polar agencies IPEV and PNRA in the framework of the Concordia station program, from OCA, INSU, Idex UCAJEDI (ANR- 15-IDEX01), and ESA through the Science Faculty of the European Space Research and Technology Centre (ESTEC). | en_US |
| dc.description.uri | https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/202346406 | en_US |
| dc.format.extent | 15 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.genre | preprints | en_US |
| dc.identifier | doi:10.13016/m2zq5g-vzdm | |
| dc.identifier.citation | Psaridi , Angelica, et al. "Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS. TOI-615b, TOI-622b, and TOI-2641b" Planets and planetary systems (05 May, 2023). https://doi.org/10.1051/0004-6361/202346406. | en_US |
| dc.identifier.uri | https://doi.org/10.1051/0004-6361/202346406 | |
| dc.identifier.uri | http://hdl.handle.net/11603/28131 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | EDP | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | en_US |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS. TOI-615b, TOI-622b, and TOI-2641b | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0002-0476-4206 | en_US |