Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b

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

doi:10.1051/0004-6361/202346406

Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b

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. CollinsGeorge 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

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The number of confirmed exoplanets is increasing, yet there are few known transiting exoplanets around early-type stars. These exoplanets are vital for understanding planet properties and formation across different stellar masses, as well as the effects of high irradiation on hot Jupiters. We announce the discovery of three Saturn-mass planets (TOI-615b, TOI-622b, and TOI-2641b) transiting main sequence, F-type stars, identified by TESS and verified with ground-based observations. TOI-615b orbits a 6850 K star and is highly irradiated, TOI-622b does not exhibit radius inflation despite its high irradiation, and TOI-2641b has a grazing transit leading to an uncertain radius measurement. Particularly, TOI-615b is promising for atmospheric studies. Exploring the atmosphere and alignment of these exoplanets in the future will offer insights into their composition, formation, and migration across different stellar types.

Original language	English
Article number	A39
Journal	Astronomy and Astrophysics
Volume	675
DOIs	https://doi.org/10.1051/0004-6361/202346406
State	Published - Jul 1 2023

ASJC Scopus Subject Areas

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Planets and satellites: individual: TOI-2641b
Planets and satellites: individual: TOI-615b
Planets and satellites: individual: TOI-622b
Stars: early-type
Techniques: photometric
Techniques: radial velocities

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10.1051/0004-6361/202346406

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Psaridi, A., Bouchy, F., Lendl, M., Akinsanmi, B., Stassun, K. G., Smalley, B., Armstrong, D. J., Howard, S., Ulmer-Moll, S., Grieves, N., Barkaoui, K., Rodriguez, J. E., Bryant, E. M., Suárez, O., Guillot, T., Evans, P., Attia, O., Wittenmyer, R. A., Yee, S. W., ... Zapata, A. (2023). Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b. Astronomy and Astrophysics, 675, Article A39. https://doi.org/10.1051/0004-6361/202346406

Psaridi, A, Bouchy, F, Lendl, M, Akinsanmi, B, Stassun, KG, Smalley, B, Armstrong, DJ, Howard, S, Ulmer-Moll, S, Grieves, N, Barkaoui, K, Rodriguez, JE, Bryant, EM, Suárez, O, Guillot, T, Evans, P, Attia, O, Wittenmyer, RA, Yee, SW, Collins, KA, Zhou, G, Galland, F, Parc, L, Udry, S, Figueira, P, Ziegler, C, Mordasini, C, Winn, JN, Seager, S, Jenkins, JM, Twicken, JD, Brahm, R, Jones, MI, Abe, L, Addison, B, Briceño, C, Briegal, JT, Collins, KI, Daylan, T, Eigmüller, P, Furesz, G, Guerrero, NM, Hagelberg, J, Heitzmann, A, Hounsell, R, Huang, CX, Krenn, A, Law, NM, Mann, AW, McCormac, J, Mékarnia, D, Mounzer, D, Nielsen, LD, Osborn, A, Reinarz, Y, Sefako, RR, Steiner, M, Strøm, PA, Triaud, AHMJ, Vanderspek, R, Vanzi, L, Vines, JI, Watson, CA, Wright, DJ & Zapata, A 2023, 'Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b', Astronomy and Astrophysics, vol. 675, A39. https://doi.org/10.1051/0004-6361/202346406

@article{72df2351b98c409cab21a414ef517701,

title = "Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b",

abstract = "The number of confirmed exoplanets is increasing, yet there are few known transiting exoplanets around early-type stars. These exoplanets are vital for understanding planet properties and formation across different stellar masses, as well as the effects of high irradiation on hot Jupiters. We announce the discovery of three Saturn-mass planets (TOI-615b, TOI-622b, and TOI-2641b) transiting main sequence, F-type stars, identified by TESS and verified with ground-based observations. TOI-615b orbits a 6850 K star and is highly irradiated, TOI-622b does not exhibit radius inflation despite its high irradiation, and TOI-2641b has a grazing transit leading to an uncertain radius measurement. Particularly, TOI-615b is promising for atmospheric studies. Exploring the atmosphere and alignment of these exoplanets in the future will offer insights into their composition, formation, and migration across different stellar types.",

keywords = "Planets and satellites: individual: TOI-2641b, Planets and satellites: individual: TOI-615b, Planets and satellites: individual: TOI-622b, Stars: early-type, Techniques: photometric, Techniques: radial velocities",

author = "Angelica Psaridi and Fran{\c c}ois Bouchy and Monika Lendl and Babatunde Akinsanmi and Stassun, {Keivan G.} and Barry Smalley and Armstrong, {David J.} and Saburo Howard and Sol{\`e}ne Ulmer-Moll and Nolan Grieves and Khalid Barkaoui and Rodriguez, {Joseph E.} and Bryant, {Edward M.} and Olga Su{\'a}rez and Tristan Guillot and Phil Evans and Omar Attia and Wittenmyer, {Robert A.} and Yee, {Samuel W.} and Collins, {Karen A.} and George Zhou and Franck Galland and L{\'e}na Parc and St{\'e}phane Udry and Pedro Figueira and Carl Ziegler and Christoph Mordasini and Winn, {Joshua N.} and Sara Seager and Jenkins, {Jon M.} and Twicken, {Joseph D.} and Rafael Brahm and Jones, {Mat{\'i}as I.} and Lyu Abe and Brett Addison and C{\'e}sar Brice{\~n}o and Briegal, {Joshua T.} and Collins, {Kevin I.} and Tansu Daylan and Phillip Eigm{\"u}ller and Gabor Furesz and Guerrero, {Natalia M.} and Janis Hagelberg and Alexis Heitzmann and Rebekah Hounsell and Huang, {Chelsea X.} and Andreas Krenn and Law, {Nicholas M.} and Mann, {Andrew W.} and James McCormac and Djamel M{\'e}karnia and Dany Mounzer and Nielsen, {Louise D.} and Ares Osborn and Yared Reinarz and Sefako, {Ramotholo R.} and Michal Steiner and Str{\o}m, {Paul A.} and Triaud, {Amaury H.M.J.} and Roland Vanderspek and Leonardo Vanzi and Vines, {Jose I.} and Watson, {Christopher A.} and Wright, {Duncan J.} and Abner Zapata",

note = "Funding Information: 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 Follow-up Observation Program (ExoFOP; DOI: 10.26134/Exo-FOP5 ) 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 2022A-932354; 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 Minist{\'e}rio da Ci{\^e}ncia, Tecnologia e Inova{\c c}{\~o}es (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{\textquoteright}s Horizon 2020 research and innovation programme (grant agreement no. 803193/BEBOP), and from the Science and Technology Facilities Council (STFC; grant n° ST/S00193X/1). D.J.A. 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 NOIR-Lab 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-IDEX-01), and ESA through the Science Faculty of the European Space Research and Technology Centre (ESTEC). Publisher Copyright: {\textcopyright} 2023 Authors.",

year = "2023",

month = jul,

day = "1",

doi = "10.1051/0004-6361/202346406",

language = "English",

volume = "675",

}

TY - JOUR

T1 - Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS

T2 - TOI-615b, TOI-622b, and TOI-2641b

AU - Psaridi, Angelica

AU - Bouchy, François

AU - Lendl, Monika

AU - Akinsanmi, Babatunde

AU - Stassun, Keivan G.

AU - Smalley, Barry

AU - Armstrong, David J.

AU - Howard, Saburo

AU - Ulmer-Moll, Solène

AU - Grieves, Nolan

AU - Barkaoui, Khalid

AU - Rodriguez, Joseph E.

AU - Bryant, Edward M.

AU - Suárez, Olga

AU - Guillot, Tristan

AU - Evans, Phil

AU - Attia, Omar

AU - Wittenmyer, Robert A.

AU - Yee, Samuel W.

AU - Collins, Karen A.

AU - Zhou, George

AU - Galland, Franck

AU - Parc, Léna

AU - Udry, Stéphane

AU - Figueira, Pedro

AU - Ziegler, Carl

AU - Mordasini, Christoph

AU - Winn, Joshua N.

AU - Seager, Sara

AU - Jenkins, Jon M.

AU - Twicken, Joseph D.

AU - Brahm, Rafael

AU - Jones, Matías I.

AU - Abe, Lyu

AU - Addison, Brett

AU - Briceño, César

AU - Briegal, Joshua T.

AU - Collins, Kevin I.

AU - Daylan, Tansu

AU - Eigmüller, Phillip

AU - Furesz, Gabor

AU - Guerrero, Natalia M.

AU - Hagelberg, Janis

AU - Heitzmann, Alexis

AU - Hounsell, Rebekah

AU - Huang, Chelsea X.

AU - Krenn, Andreas

AU - Law, Nicholas M.

AU - Mann, Andrew W.

AU - McCormac, James

AU - Mékarnia, Djamel

AU - Mounzer, Dany

AU - Nielsen, Louise D.

AU - Osborn, Ares

AU - Reinarz, Yared

AU - Sefako, Ramotholo R.

AU - Steiner, Michal

AU - Strøm, Paul A.

AU - Triaud, Amaury H.M.J.

AU - Vanderspek, Roland

AU - Vanzi, Leonardo

AU - Vines, Jose I.

AU - Watson, Christopher A.

AU - Wright, Duncan J.

AU - Zapata, Abner

N1 - Funding Information: 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 Follow-up Observation Program (ExoFOP; DOI: 10.26134/Exo-FOP5 ) 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 2022A-932354; 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 no. 803193/BEBOP), and from the Science and Technology Facilities Council (STFC; grant n° ST/S00193X/1). D.J.A. 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 NOIR-Lab 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-IDEX-01), and ESA through the Science Faculty of the European Space Research and Technology Centre (ESTEC). Publisher Copyright: © 2023 Authors.

PY - 2023/7/1

Y1 - 2023/7/1

N2 - The number of confirmed exoplanets is increasing, yet there are few known transiting exoplanets around early-type stars. These exoplanets are vital for understanding planet properties and formation across different stellar masses, as well as the effects of high irradiation on hot Jupiters. We announce the discovery of three Saturn-mass planets (TOI-615b, TOI-622b, and TOI-2641b) transiting main sequence, F-type stars, identified by TESS and verified with ground-based observations. TOI-615b orbits a 6850 K star and is highly irradiated, TOI-622b does not exhibit radius inflation despite its high irradiation, and TOI-2641b has a grazing transit leading to an uncertain radius measurement. Particularly, TOI-615b is promising for atmospheric studies. Exploring the atmosphere and alignment of these exoplanets in the future will offer insights into their composition, formation, and migration across different stellar types.

AB - The number of confirmed exoplanets is increasing, yet there are few known transiting exoplanets around early-type stars. These exoplanets are vital for understanding planet properties and formation across different stellar masses, as well as the effects of high irradiation on hot Jupiters. We announce the discovery of three Saturn-mass planets (TOI-615b, TOI-622b, and TOI-2641b) transiting main sequence, F-type stars, identified by TESS and verified with ground-based observations. TOI-615b orbits a 6850 K star and is highly irradiated, TOI-622b does not exhibit radius inflation despite its high irradiation, and TOI-2641b has a grazing transit leading to an uncertain radius measurement. Particularly, TOI-615b is promising for atmospheric studies. Exploring the atmosphere and alignment of these exoplanets in the future will offer insights into their composition, formation, and migration across different stellar types.

KW - Planets and satellites: individual: TOI-2641b

KW - Planets and satellites: individual: TOI-615b

KW - Planets and satellites: individual: TOI-622b

KW - Stars: early-type

KW - Techniques: photometric

KW - Techniques: radial velocities

UR - http://www.scopus.com/inward/record.url?scp=85164536481&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85164536481&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/202346406

DO - 10.1051/0004-6361/202346406

M3 - Article

AN - SCOPUS:85164536481

SN - 0004-6361

VL - 675

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A39

ER -

Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS: TOI-615b, TOI-622b, and TOI-2641b

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