TOI-2046b, TOI-1181b, and TOI-1516b, three new hot Jupiters from TESS: planets orbiting a young star, a subgiant, and a normal star

Kabáth, Petr; Chaturvedi, Priyanka; MacQueen, Phillip J.; Skarka, Marek; Šubjak, Ján; Esposito, Massimilliano; Cochran, William D.; Bellomo, Salvatore E.; Karjalainen, Raine; Guenther, Eike W.; Endl, Michael; Csizmadia, Szilárd; Karjalainen, Marie; Hatzes, Artie; Žák, Jiří; Gandolfi, Davide; Boffin, Henri M. J.; Vines, Jose I.; Livingston, John H.; García, Rafael A.; Mathur, Savita; González-Cuesta, Lucía; Blažek, Martin; Caldwell, Douglas A.; Colón, Knicole D.; Deeg, Hans; Erikson, Anders; van Eylen, Vincent; Fong, William; Fridlund, Malcolm; Fukui, Akihiko; Fűrész, Gábor; Goeke, Robert F.; Goffo, Elisa; Howell, Steve; Jenkins, Jon M.; Klagyivik, Peter; Korth, Judith; Latham, David W.; Luque, Rafael; Moldovan, Dan; Murgas, Felipe; Narita, Norio; Orell-Miquel, Jaume; Palle, Enric; Parviainen, Hannu; Persson, Carina M.; Reed, Phillip A.; Redfield, Seth; Ricker, George R.; Seager, Sara; Serrano, Luisa Maria; Shporer, Avi; Smith, Alexis M. S.; Watanabe, Noriharu; Winn, Joshua N.; Kesprint Team
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Monthly Notices of the Royal Astronomical Society

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We present the confirmation and characterization of three hot Jupiters, TOI-1181b, TOI-1516b, and TOI-2046b, discovered by the TESS space mission. The reported hot Jupiters have orbital periods between 1.4 and 2.05 d. The masses of the three planets are 1.18 ± 0.14 MJ, 3.16 ± 0.12 MJ, and 2.30 ± 0.28 MJ, for TOI-1181b, TOI-1516b, and TOI-2046b, respectively. The stellar host of TOI-1181b is a F9IV star, whereas TOI-1516b and TOI-2046b orbit F main sequence host stars. The ages of the first two systems are in the range of 2-5 Gyrs. However, TOI-2046 is among the few youngest known planetary systems hosting a hot Jupiter, with an age estimate of 100-400 Myrs. The main instruments used for the radial velocity follow-up of these three planets are located at Ondřejov, Tautenburg, and McDonald Observatory, and all three are mounted on 2-3 m aperture telescopes, demonstrating that mid-aperture telescope networks can play a substantial role in the follow-up of gas giants discovered by TESS and in the future by PLATO.
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