TOI-2046b, TOI-1181b, and TOI-1516b, three new hot Jupiters from TESS: planets orbiting a young star, a subgiant, and a normal star
Latham, David W.; Cochran, William D.; Endl, Michael; Redfield, Seth; García, Rafael A.; Kabáth, Petr; Ricker, George R.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; Skarka, Marek; Caldwell, Douglas A.; Shporer, Avi; Livingston, John H.; Gandolfi, Davide; Deeg, Hans; Erikson, Anders; Fridlund, Malcolm; Fukui, Akihiko; Guenther, Eike W.; Korth, Judith; Narita, Norio; Palle, Enric; Persson, Carina M.; Vines, Jose I.; Mathur, Savita; Colón, Knicole D.; Reed, Phillip A.; MacQueen, Phillip J.; Luque, Rafael; Šubjak, Ján; Goffo, Elisa; Karjalainen, Marie; Karjalainen, Raine; Serrano, Luisa Maria; Smith, Alexis M. S.; Csizmadia, Szilárd; Boffin, Henri M. J.; Murgas, Felipe; Goeke, Robert F.; Hatzes, Artie; Orell-Miquel, Jaume; Parviainen, Hannu; Fong, William; Chaturvedi, Priyanka; Watanabe, Noriharu; Moldovan, Dan; Howell, Steve; Fűrész, Gábor; González-Cuesta, Lucía; Klagyivik, Peter; Blažek, Martin; Žák, Jiří; Esposito, Massimilliano; Bellomo, Salvatore E.; van Eylen, Vincent; Kesprint Team
Czech Republic, Germany, United States, Italy, Chile, Japan, France, Spain, United Kingdom, Sweden, Netherlands
Abstract
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.