TOI-4010 : a system of three large short-period planets with a massive long-period companion
Abstract
We report the confirmation of three exoplanets transiting TOI-4010 (TIC-352682207), a metal-rich K dwarf observed by the Transiting Exoplanet Survey Satellite in Sectors 24, 25, 52, and 58. We confirm these planets with the High Accuracy Radial velocity Planet Searcher for the Northern Hemisphere radial velocity observations and measure their masses with 8−12% precision. TOI-4010 b is a sub-Neptune (P = 1.3 days, Rp=3.02−0.08+0.08R⊕ , Mp=11.00−1.27+1.29M⊕ ) in the hot-Neptune desert, and is one of the few such planets with known companions. Meanwhile, TOI-4010 c (P = 5.4 days, Rp=5.93−0.12+0.11R⊕ , Mp=20.31−2.11+2.13M⊕ ) and TOI-4010 d (P = 14.7 days, Rp=6.18−0.14+0.15R⊕ , Mp=38.15−3.22+3.27M⊕ ) are similarly sized sub-Saturns on short-period orbits. Radial velocity observations also reveal a super-Jupiter-mass companion called TOI-4010 e in a long-period, eccentric orbit (P ∼ 762 days and e ∼ 0.26 based on available observations). TOI-4010 is one of the few systems with multiple short-period sub-Saturns to be discovered so far.
Citation
Kunimoto , M , Vanderburg , A , Huang , C X , Davis , M R , Affer , L , Cameron , A C , Charbonneau , D , Cosentino , R , Damasso , M , Dumusque , X , Fiorenzano , A F M , Ghedina , A , Haywood , R D , Lienhard , F , López-Morales , M , Mayor , M , Pepe , F , Pinamonti , M , Poretti , E , Maldonado , J , Rice , K , Sozzetti , A , Wilson , T G , Udry , S , Baptista , J , Barkaoui , K , Becker , J , Benni , P , Bieryla , A , Bosch-Cabot , P , Ciardi , D R , Collins , K A , Collins , K I , Evans , E , Dupuy , T J , Goliguzova , M V , Guerra , P , Kraus , A , Lissauer , J J , Huber , D , Murgas , F , Palle , E , Quinn , S N , Safonov , B S , Schwarz , R P , Shporer , A , Stassun , K G , Jenkins , J M , Latham , D W , Ricker , G R , Seager , S , Vanderspek , R , Winn , J , Essack , Z , Lewis , H M & Rose , M E 2023 , ' TOI-4010 : a system of three large short-period planets with a massive long-period companion ' , Astronomical Journal , vol. 166 , no. 1 . https://doi.org/10.3847/1538-3881/acd537
Publication
Astronomical Journal
Status
Peer reviewed
ISSN
0004-6256Type
Journal article
Description
Funding: This project has received funding from the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation program (grant agreement SCORE No 851555). This work has been carried out within the framework of the NCCR PlanetS supported by the Swiss National Science Foundation under grants 51NF40_182901 and 51NF40_205606. R.D.H. is funded by the UK Science and Technology Facilities Council (STFC)'s Ernest Rutherford Fellowship (grant No. ST/V004735/1). TGW acknowledges support from STFC consolidated grant Nos. ST/R000824/1 and ST/V000861/1, and UKSA grant No. ST/R003203/1. A.S. and M.Pi. acknowledge financial contribution from the agreement ASI-INAF n.2018-16-HH.0. M.Pi. acknowledge financial contribution from the PRIN-INAF 2019 "Planetary systems at young ages (PLATEA)." B.S.S. and M.V.G. acknowledge the support of Ministry of Science and Higher Education of the Russian Federation under the grant 075-15-2020-780 (N13.1902.21.0039). D.H. acknowledges support from the Alfred P. Sloan Foundation, the National Aeronautics and Space Administration (80NSSC21K0652), and the National Science Foundation (AST-2009828). J.B. acknowledges support from the National Science Foundation (AST-2009828).Collections
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